WBCS Prelims 2010 Question Paper with Answers & Explanations

Explanation

The word gourmet refers to a connoisseur of good food. Originating from the French language, it describes an individual who possesses a refined palate and has a deep appreciation, knowledge, and love for high-quality food and drink, as well as its preparation and culinary art.

Explanation

Quietude refers to a state of stillness, peace, and tranquility. Unlike mere physical silence or lack of noise, quietude carries a connotation of mental, spiritual, and environmental calmness. This makes it the most appropriate and meaningful term to describe a serene atmosphere that naturally appeals to ascetics, who seek a peaceful environment conducive to meditation, contemplation, and spiritual practices.

Explanation

The word illuminated is the standard past participle of the verb illuminate, which means to supply or brighten with light. In the context of streets, public spaces, or rooms, illuminated is the grammatically correct and most natural adjective used to describe being lit up by artificial lights or streetlamps.

Explanation

The term maniac refers to an individual who is affected by mania, which is a state of intense, obsessive, and often irrational enthusiasm or preoccupation with a specific thing. In psychological terms, a person dominated by a single, irrationally fixed idea is described as exhibiting a form of mania (historically termed monomania), which makes such an obsessed individual a maniac.

Explanation

A husbandman (referred to as a husbands man in the options) is a traditional term for a person who practices husbandry. The word husbandry is defined as the scientific control and management of a branch of farming, specifically involving the breeding, raising, and nurturing of domestic animals alongside crop cultivation. Derived from the Old Norse roots meaning householder, a husbandman historically managed all agrarian resources of a household, making it the precise term for a man in charge of both farming and animal care.

Explanation

The word lachrymose is derived from the Latin word lacrima, which translates to tear. A lachrymose nature describes a temperament or disposition that is tearful, mournful, or given to weeping easily. It is used to characterize someone who is highly emotional and prone to shedding tears.

Explanation

The idiomatic phrase to follow one's nose means to act according to one's natural feelings, intuition, or instinct rather than relying on conscious reasoning, calculation, or external instructions. When someone follows their nose, they trust their immediate, spontaneous guidance to make decisions or find a direction, which corresponds directly to acting on instinct.

Explanation

The phrase "public woman" is historically and colloquially used as a euphemism or slang for a female prostitute or a woman regarded as sexually promiscuous. Because it reduces a woman's identity to a derogatory social label associated with sex work or perceived lack of chastity, the adjective "public" in this specific combination carries a derogatory, offensive, and disparaging meaning.

Explanation

The sentence uses the standard idiomatic expression to sweep something under the carpet, which means to deliberately hide or ignore an embarrassing problem, mistake, or scandal in the hope that it will be forgotten or remain unnoticed by the public.

Explanation

The idiomatic phrase to blow one's own trumpet means to boast or talk boastfully about one's own achievements, talents, or abilities. It is used to describe someone who self-promotes or seeks to impress others by highlighting their own successes.

Explanation

The word divine relates to heaven or God, representing holiness, light, and celestial goodness. Conversely, the word infernal relates to hell or the underworld, representing darkness, evil, and torment. Because one is celestial and the other is hellish, they are antonyms that represent opposite concepts.

Explanation

Humid describes a climate or air condition characterized by a high concentration of water vapor, making it damp and moist. In contrast, arid refers to an extremely dry region or climate that lacks sufficient moisture or rainfall to support vegetation. Because these two terms represent diametrically opposite moisture conditions, they form a pair set in opposition.

Explanation

The verb mar means to spoil, damage, or impair the quality or progress of something. In the given context, a hike in oil prices is described as having a damaging or negative impact on the future of the trade world, which is synonymous with worsening it.

Explanation

The term "blues" is an idiomatic expression in English used to describe feelings of deep sadness, melancholy, depression, or low spirits. Originating historically from the phrase "the blue devils," it represents a state of gloom or unhappiness, which naturally characterizes the feeling of being separated from a lover.

Explanation

The idiom "to take the bull by the horns" means to deal with a difficult, dangerous, or unpleasant situation directly and courageously rather than avoiding it. Facing a challenging situation boldly is the direct meaning of this expression, which originates from the physical action of confronting a dangerous bull head-on by grabbing its horns to control it.

Explanation

Chauvinism refers to an attitude of aggressive, exaggerated, or fanatical devotion to one's own country, gender, or group, combined with a strong belief in its superiority over all others. A chauvinist holds a deep-seated conviction that their group is inherently better, more powerful, or more civilized than any other group. The statement "We are superior to everybody else" represents this blind and biased belief in group-level superiority.

Explanation

The idiom "to give a dog a bad name" (derived from the proverb "give a dog a bad name and hang him") signifies that once a person's reputation has been tarnished or ruined, it is extremely difficult for them to lose that bad reputation. Once labeled negatively, they will continue to be viewed with suspicion and judged based on that reputation, making it nearly impossible to regain public trust or a clean image.

Explanation

In the phrase "the prospect of her marriage is remote", 'remote' means unlikely or improbable. The most direct opposite of an unlikely prospect is a high prospect, implying a high probability or likelihood. While 'near' can sometimes relate to the imminence of an event, 'high' specifically contrasts with the low probability implied by 'remote' in this context.

Explanation

The idiom lame duck originally referred to a stockbroker who defaulted on their debts and was unable to pay. In broader organizational, economic, and administrative contexts, a lame duck organization refers to an entity that has become weak, inefficient, or financially disabled. Because it is unable to function effectively or survive on its own, such an organization requires external assistance or support to remain viable.

Explanation

A manicurist is a trained professional who specializes in the cosmetic treatment and grooming of the hands and fingernails. Derived from the Latin words manus, meaning hand, and cura, meaning care, a manicurist cleans, shapes, files, and polishes fingernails, while also treating the surrounding skin and cuticles to maintain overall nail health and appearance.

Explanation

The verb "to duck" means to lower the head or body quickly, especially to escape being seen or hit. In a figurative sense, it is commonly used to mean to evade, escape, or avoid a difficult situation, responsibility, or question.

Explanation

The phrasal verb ties in with means to be consistent with, align with, or support something. In this context, using ties in indicates that the new evidence is in agreement with and fits perfectly alongside the information or knowledge that is already known.

Explanation

An osteopath is a medical professional who practices osteopathy, a system of healthcare focused on diagnosing, treating, and preventing conditions affecting the musculoskeletal system, particularly the bones, muscles, and joints. Derived from the Greek words osteon meaning bone and pathos meaning suffering, this discipline emphasizes manual therapy, physical manipulation, stretching, and massage to restore structural balance, alleviate pain, and promote the body's natural capacity for healing.

Explanation

The idiom baptism of fire originally referred to a soldier's first experience of actual combat. In broader usage, it represents any very difficult, demanding, or challenging introduction to a new job, activity, or experience that severely tests a person's abilities, courage, or resolve right at the beginning.

Explanation

The term pugilist refers to a person who fights with their fists, specifically a professional boxer. It is derived from the Latin word pugil, which translates directly to boxer, and is related to pugnus, meaning fist. The sport and practice of boxing is also historically known as pugilism.

Explanation

The pattern of the number of letters in the given series forms an arithmetic progression where the number of occurrences of the n-th letter of the English alphabet is given by the formula 2n - 1. For example, the first letter 'a' (n = 1) appears 2(1) - 1 = 1 time, the second letter 'b' (n = 2) appears 2(2) - 1 = 3 times, the third letter 'c' (n = 3) appears 2(3) - 1 = 5 times, and the fourth letter 'd' (n = 4) appears 2(4) - 1 = 7 times. Since 'm' is the 13th letter of the alphabet, we substitute n = 13 into the formula, which yields 2(13) - 1 = 25 occurrences of 'm' in the series.

Explanation

To evaluate the given expression, we apply the defined rules for the binary operator * step-by-step.

The rules are: If x < y, then x * y = x + y If x > y, then x * y = x - y + 1 If x = y, then x * y = 2x - 1

First, let us evaluate the term 5 (6 2):

For the inner bracket (6 * 2), since 6 > 2, we apply the second rule: 6 * 2 = 6 - 2 + 1 = 5

Now, substitute this result into the expression: 5 (6 2) = 5 * 5

Since 5 = 5, we apply the third rule: 5 * 5 = 2(5) - 1 = 9

Second, let us evaluate the term (5 6) 2:

For the inner bracket (5 * 6), since 5 < 6, we apply the first rule: 5 * 6 = 5 + 6 = 11

Now, substitute this result to find 11 * 2. Since 11 > 2, we apply the second rule: 11 * 2 = 11 - 2 + 1 = 10

Adding both evaluated parts together: 5 (6 2) + (5 6) 2 = 9 + 10 = 19

Explanation

According to Kirchhoff's law of thermal radiation, a good absorber of radiation is also a good emitter of radiation. A black surface has high absorptivity, meaning it is also an extremely efficient emitter of thermal radiation, with an emissivity value close to 1. In addition, a rough surface increases the effective surface area and creates multiple micro-cavities that trap and re-radiate energy. This geometric effect significantly enhances the rate of emission compared to a smooth surface, making a rough, black surface the most effective radiator of heat.

Explanation

Haemophilia is an inherited bleeding disorder caused by a deficiency of clotting factors VIII or IX. The genes responsible for these clotting factors are located on the X chromosome. It is a recessive trait, which means that males, possessing only one X chromosome, will express the condition if they inherit the affected gene. Females, who have two X chromosomes, must inherit two copies of the defective gene to be affected, while carrying a single copy makes them asymptomatic carriers.

Explanation

The cervix is the lower, narrow portion of the uterus that connects the main uterine cavity to the lumen of the vagina in higher mammals. It serves as a vital pathway, allowing the passage of sperm into the uterus for fertilization and facilitating the flow of menstrual blood or the passage of a fetus during childbirth.

Explanation

Minamata disease is a highly debilitating neurological syndrome caused by severe methylmercury poisoning. It was first discovered in 1956 in Minamata City, located in Kumamoto Prefecture, Japan. The disaster occurred due to the discharge of industrial wastewater containing highly toxic methylmercury from a chemical factory owned by the Chisso Corporation. This chemical accumulated in the local marine life, specifically fish and shellfish in Minamata Bay and the Shiranui Sea, which were then consumed by the local population, leading to widespread mercury poisoning.

Explanation

In bryophytes, including mosses, liverworts, and hornworts, the dominant and most conspicuous phase of the life cycle is the gametophyte. The main vegetative body of the plant is haploid, green, photosynthetic, and independent, representing the gametophytic generation. The diploid sporophyte generation remains physically attached to and nutritionally dependent on the gametophyte for its survival. Thus, the visible vegetative structure of a moss or bryophyte is the gametophyte.

Explanation

Alauddin Khilji, who ruled the Delhi Sultanate from 1296 to 1316, was extremely ambitious and assumed the title of Sikandar-i-Sani, which translates to the Second Alexander. He had this title inscribed on his coins and read in the khutba. Alauddin harbored dreams of conquering the entire world and establishing a new religion. However, his loyal advisor Ala-ul-Mulk, the Kotwal of Delhi, advised him to abandon these plans and instead focus on defending the Sultanate from Mongol invasions and conquering the unconquered territories within the Indian subcontinent first.

Explanation

In 2008, which is a leap year, February has 29 days, while all other eleven months have at least 30 days.

The months containing a 30th day are January, March, April, May, June, July, August, September, October, November, and December. This gives a total of 11 months that have a 30th day. Total amount received from 30th days = 11 × 50 = Rs. 550

The months containing a 31st day are January, March, May, July, August, October, and December. This gives a total of 7 months that have a 31st day. Total amount received from 31st days = 7 × 100 = Rs. 700

Total amount received by Bidisha during the year 2008 = 550 + 700 = Rs. 1250

Explanation

A leap year has 366 days. Dividing the total number of days by 7, which is the number of days in a week, yields 366 = (52 × 7) + 2. This indicates that a leap year contains 52 complete weeks and 2 extra odd days. These 2 extra days must always be consecutive days of the week, which will consequently appear 53 times in that year, while the remaining five days of the week will appear 52 times. Wednesday and Thursday are the only pair of consecutive days.

Explanation

Enzymes act as biological catalysts that accelerate chemical reactions by providing an alternative pathway with a lower activation energy. The activation energy is the minimum energy barrier that reactant molecules must overcome to be transformed into products. By binding to the substrates and stabilizing the transition state, enzymes reduce this energy requirement, allowing a significantly higher fraction of reactant molecules to successfully react at body temperature, thereby increasing the reaction rate.

Explanation

Cardiac muscle requires a continuous and uninterrupted supply of energy to pump blood throughout the body. To sustain this constant rhythmic contraction, cardiac muscle cells contain an exceptionally high concentration of mitochondria, which occupy about thirty to thirty-five percent of their cellular volume. These numerous mitochondria facilitate continuous aerobic respiration, producing a steady and abundant supply of adenosine triphosphate (ATP) and preventing the accumulation of lactic acid, which allows the cardiac muscle to function continuously without undergoing fatigue.

Explanation

For worldwide satellite communication, geostationary communication satellites are placed in orbit approximately 35,786 kilometers above the Earth's equator. From this altitude, a single geostationary satellite is capable of covering roughly 120 degrees of longitude, which represents about one-third of the Earth's surface.

To achieve continuous, uninterrupted global communication coverage, a minimum of 3 geostationary satellites must be positioned at equidistant points along the equatorial orbit. Spacing the three satellites 120 degrees apart from each other ensures overlapping coverage zones and allows them to maintain a direct line of sight to relay signals entirely around the globe.

Explanation

The light reaction of photosynthesis is a light-dependent process that occurs within the thylakoid membranes of the chloroplast, which are organized into stacks called grana. The pigment molecules, including chlorophyll, are embedded in these membranes and absorb light energy to drive the synthesis of ATP and NADPH through photophosphorylation. Additionally, the photolysis of water molecules takes place in the grana, releasing molecular oxygen as a byproduct. These reaction steps require the direct absorption of light, which is facilitated by the specific structural arrangement of photosystems and electron carriers within the grana.

Explanation

Chittaranjan, located in the Paschim Bardhaman district of West Bengal, is globally renowned for the Chittaranjan Locomotive Works (CLW). Established in 1950, CLW is a premier state-owned locomotive manufacturing unit of the Indian Railways and one of the largest of its kind in the world. Originally set up to manufacture steam locomotives, the facility subsequently transitioned to producing diesel-hydraulic models and eventually became a specialized hub for manufacturing high-horsepower electric locomotives.

Explanation

The Haversian system, also known as an osteon, is the fundamental structural and functional unit of compact bone. It consists of a central canal, called the Haversian canal, which contains blood vessels, lymphatic vessels, and nerve fibers. This central canal is surrounded by concentric layers of hard, calcified bone matrix called lamellae. Within the lamellae, mature bone cells called osteocytes reside in tiny spaces known as lacunae, which are interconnected by a network of minute channels called canaliculi that allow for the transport of nutrients and metabolic waste.

Explanation

Plutonium-239 is a highly fissile isotope that readily undergoes nuclear fission when bombarded by thermal or slow neutrons. During this fission process, the nucleus splits into smaller nuclei, releasing a massive amount of energy along with additional neutrons. These released neutrons can trigger further fission events, sustaining a self-supporting nuclear chain reaction. This capability to sustain a nuclear chain reaction makes Plutonium-239 an exceptionally efficient and powerful nuclear fuel in power reactors.

Explanation

Burning of wax in a candle is a chemical change because it involves a combustion reaction. The wax consists of hydrocarbons that react with oxygen in the air when heated. This chemical reaction breaks the existing molecular bonds and forms entirely new chemical substances, primarily carbon dioxide gas, water vapor, and soot, accompanied by the release of heat and light energy. Since the chemical composition of the substance is altered and new products are formed that cannot be easily reversed to recover the original wax, this process is classified as a chemical change.

Explanation

The Latur earthquake, an intraplate event, is widely believed to have been triggered by excessive loading of water, specifically heavy monsoon rains infiltrating ancient fault lines. This increased pore pressure, reducing the strength of the fault and leading to its rupture. While plate movement is the ultimate cause of stress, water loading is considered a proximate trigger for this specific intraplate earthquake.

Explanation

Polytene chromosomes, commonly referred to in some Indian competitive examinations with the typographical spelling polythene chromosomes, are giant chromosomes first discovered by E.G. Balbiani in 1881. They are typically found in the salivary glands of the larvae of dipteran flies, such as Drosophila and Chironomus.

These giant chromosomes are produced through endoreplication (or endomitosis), a process in which the genomic DNA undergoes multiple successive rounds of replication without subsequent cell division or nuclear division. This results in thousands of sister chromatids remaining aligned and fused together side-by-side. The massive physical size of these chromosomes, along with their distinct banding patterns of dark bands and light interbands, allows the larval salivary gland cells to achieve extremely high levels of gene expression to rapidly synthesize large quantities of glue proteins required before pupation.

Explanation

Sunken stomata are a classic anatomical adaptation of xerophytes, which are plants adapted to dry and arid habitats. These stomata are located within deep pits or depressions on the leaf surface. This arrangement traps a micro-environment of moist, still air over the stomatal opening, which significantly reduces the water vapor concentration gradient between the internal leaf tissues and the surrounding air, thereby minimizing water loss through transpiration.

Explanation

The Fifth Five Year Plan was originally scheduled for the period 1974 to 1979. Its primary objectives were the eradication of poverty and the achievement of economic self-reliance. Following the general elections in 1977, the newly elected Janata Party government led by Morarji Desai came to power. The new administration decided to discontinue the ongoing plan of the previous government and terminated it in 1978, exactly one year before its scheduled completion. In its place, the government introduced a Rolling Plan for the period 1978 to 1980.

Explanation

Aryabhata (476–550 CE) and Varahamihira (505–587 CE) were pioneering scholars of the Gupta period, which is renowned as the Golden Age of Indian science, mathematics, and literature. Aryabhata wrote the landmark astronomical treatise Aryabhatiya, introducing revolutionary concepts such as the earth's rotation on its axis, the scientific explanation of eclipses, and advanced trigonometric and algebraic methods. Varahamihira, who worked at the famous scientific center of Ujjain, compiled the Pancha-siddhantika, a treatise on five ancient astronomical schools, and Brihat Samhita, an extensive encyclopedia covering astronomy, physical geography, and planetary movements. Both scholars benefited from the patronage and intellectual climate of the Gupta era, contributing significantly to its reputation as a classical age of Indian civilization.

Explanation

During the Delhi Sultanate, the Iqta system was an administrative and agrarian system where the Sultan distributed territories and villages among his military commanders and nobles, known as Iqtadars or Muqtis. Instead of receiving cash salaries, these officials were granted the right to collect and appropriate land revenue and other taxes from these assigned lands. In return, they were responsible for maintaining a specified military force for the Sultan's service, preserving law and order, and managing local administration within their respective regions. This system was systematically organized and institutionalized in India during the reign of Sultan Shams-ud-din Iltutmish.

Explanation

The Oil and Natural Gas Corporation (ONGC) signed a Memorandum of Understanding (MoU) with the Uranium Corporation of India Limited (UCIL) to collaborate on the exploration and development of uranium resources in India. This partnership combines ONGC's extensive expertise in hydrocarbon exploration and deep drilling with UCIL's specialized experience in mining and processing nuclear materials. Under this agreement, the two public sector undertakings aimed to analyze geological data from oil and gas wells, particularly logging data, to identify potential uranium-bearing structures and expand India's domestic nuclear fuel resources.

Explanation

Glucose is an aldohexose that contains a free aldehyde group in its open-chain form. This aldehyde group acts as a strong reducing agent. When glucose is reacted with Tollen's reagent, which is an ammoniacal silver nitrate solution, it reduces the silver ions to metallic silver. The chemical reaction is represented as:

R-CHO + 2[Ag(NH₃)₂]⁺ + 3OH⁻ → R-COO⁻ + 2Ag ↓ + 4NH₃ + 2H₂O

In this reaction, the silver ions are reduced to elemental silver, which deposits on the glass surface to form a highly reflective metallic coating. This reduction process, commonly known as the silver mirror test, is utilized on a commercial scale for the silvering of mirrors.

Explanation

Value Added Tax (VAT) is a multi-point destination-based tax system where tax is levied on the incremental value added to a product or service at each stage of its production, distribution, and sale. At every stage of the supply chain, the business owner can claim input tax credit for the tax already paid on previous purchases. Consequently, the net tax liability arises only on the value added at that particular stage of production or distribution, which successfully prevents the cascading effect of double taxation.

Explanation

Iron is an essential metal cofactor in the photosynthetic machinery of plants. In the light-dependent reactions of photosynthesis, electrons are transferred along the photosynthetic electron transport chain located in the thylakoid membrane. Key components of this chain, including the cytochrome b6f complex (which contains heme-iron) and the water-soluble protein ferredoxin (which features iron-sulfur clusters, Fe-S), rely directly on the reversible oxidation-reduction of iron ions (Fe²⁺ ⇌ Fe³⁺ + e⁻) to facilitate electron flow from photosystem II to photosystem I and eventually to NADP⁺.

Explanation

The given series follows a pattern where the difference between any two consecutive terms is the square of consecutive natural numbers starting from 1.

The recurrence relation for the terms is given by: aₙ = aₙ₋₁ + (n-1)²

Applying this to the sequence: 2 - 1 = 1² 6 - 2 = 2² 15 - 6 = 3² 31 - 15 = 4²

Following this pattern, the next difference must be 5², which is 25. Thus, the next term is obtained by adding 25 to the preceding term: 31 + 25 = 56

Explanation

Let the total number of students be 27. If we assume that all 27 students are boys, the total number of biscuits distributed would be 27 × 2 = 54.

However, the actual number of biscuits distributed is 69. The excess number of biscuits is 69 - 54 = 15.

Since each girl receives 3 biscuits, which is 1 biscuit more than what each boy receives (3 - 2 = 1), this excess of 15 biscuits must be distributed to the girls, with 1 extra biscuit per girl. Therefore, the number of girls in the class is 15 / 1 = 15.

Explanation

The working of a standard suction-based tube-well depends on atmospheric pressure to push water up the pipe as a vacuum is created inside. The maximum height h to which water can be drawn is governed by the hydrostatic pressure formula:

P = ρ g h

Where P is the atmospheric pressure (approximately 1.013 × 10⁵ N/m²), ρ is the density of water (1000 kg/m³), and g is the acceleration due to gravity (9.8 m/s²). Rearranging the formula to solve for h:

h = (P)/(ρ g) = (1.013 × 10⁵)/(1000 × 9.8) ≈ 10.34 m

Converting this value to feet yields approximately 33.9 feet. Since this is the absolute theoretical maximum height under a perfect vacuum at standard atmospheric pressure, any depth exceeding this limit, such as 38 feet, makes it physically impossible for a suction-type tube-well to lift water.

Explanation

Frederick Sanger developed the chain-termination method of DNA sequencing, widely known as Sanger sequencing, in 1977. This breakthrough technique made it possible to determine the exact sequence of nucleotide bases in a DNA molecule. For this pioneering contribution to genetics and molecular biology, Sanger was awarded the Nobel Prize in Chemistry in 1980.

Explanation

According to the 2001 Census, Kolkata recorded the lowest sex ratio among all the districts of West Bengal, with 828 females per 1,000 males. This low figure is primarily due to the high rate of male-selective migration into the urban and economic hub of Kolkata from other parts of West Bengal and neighboring states, which significantly skews the gender ratio of the city.

Explanation

A cladogram is a branching diagram used in cladistics to represent a hypothesis about the evolutionary relationships, or phylogeny, among a group of organisms. It is constructed by analyzing shared derived characteristics, known as synapomorphies, to trace lines of common ancestry. Each branching point, or node, on a cladogram represents a divergence event from a hypothetical common ancestor, illustrating how different lineages evolved and split over time.

Explanation

Under Section 1(2) of the Right to Information Act, 2005, the Act extended to the whole of India except the State of Jammu and Kashmir. Due to the special status of Jammu and Kashmir under Article 370 of the Constitution of India, laws enacted by the Parliament of India did not automatically apply to the state. Consequently, the state of Jammu and Kashmir enacted its own separate legislation, the Jammu and Kashmir Right to Information Act, 2009, to handle information requests within its jurisdiction.

Explanation

In 2006, the Government of West Bengal planned to set up a Special Economic Zone (SEZ) for a chemical hub in Nandigram, located in the Purba Medinipur district. The project was to be developed in collaboration with the Indonesia-based Salim Group. The proposal involved the acquisition of thousands of acres of fertile agricultural land, which led to widespread protests and resistance by local farmers and political groups.

Explanation

Statement (1) is often considered correct for providing a qualitative definition of force, introducing the concept of inertia. However, statement (2) provides the quantitative definition of force (F=ma), which is more fundamental as the first law can be derived from it. In many contexts, the second law is taken as the primary definition of force. Statement (3) is incorrect because household appliances are connected in parallel, not series, to ensure independent operation and full voltage supply. Statement (4) is correct; the picture-tube of old televisions is indeed a cathode ray tube (CRT). Thus, statements (2) and (4) are correct.

Explanation

Service tax is an indirect tax levied by the Central Government of India under the authority of the Finance Act, 1994. It is imposed on various services provided by service providers, who collect the tax from the service recipients and subsequently deposit it with the government. Because the ultimate economic burden of this tax is shifted to the final consumer rather than being borne directly by the service provider, it is classified as an indirect tax.

Explanation

The Treaty of Amritsar was signed on April 25, 1809, between Maharaja Ranjit Singh, the ruler of the Sikh Empire, and Charles T. Metcalfe, representing the British East India Company during the governor-generalship of Lord Minto. This historic agreement established the River Sutlej as the boundary between the British territories and the Sikh Kingdom. It prevented Ranjit Singh from expanding his empire south of the Sutlej River into the Cis-Sutlej states, while securing his western and northern frontiers from British interference, allowing him to focus his military campaigns toward Peshawar, Multan, and Kashmir.

Explanation

The Ibadat Khana, or the House of Worship, was built by the Mughal Emperor Akbar at Fatehpur Sikri in 1575 AD. Initially established for debates among different sects of Islam, Akbar opened its doors to theologians, scholars, and religious leaders of all faiths, including Hinduism, Christianity, Jainism, Zoroastrianism, and Buddhism, in 1578 AD. It served as a meeting house for spiritual discussions and religious discourses, which played a pivotal role in the development of Akbar's syncretic religious philosophy, Din-i-Ilahi.

Explanation

The Bengal Sati Regulation, or Regulation XVII of 1829, was passed on December 4, 1829, by the then Governor-General of India, Lord William Bentinck. This legal act declared the practice of sati, or the burning or burying alive of Hindu widows, illegal and punishable as culpable homicide in all jurisdictions of British India. Social reformist Raja Ram Mohan Roy played an instrumental role in campaigning against the custom, arguing from sacred Hindu texts that it lacked religious sanction.

Explanation

Harappan people maintained extensive maritime and land-based trade relations with Sumer, which is part of ancient Mesopotamia. Cuneiform inscriptions from Sumerian cities refer to trade relations with a land called Meluhha, which modern historians identify as the Indus Valley region. Archaeological excavations in Sumerian cities like Ur, Kish, and Nippur have yielded numerous Indus Valley artifacts, including distinctive Harappan steatite seals, etched carnelian beads, and standard stone weights, confirming an active and organized trade network between the two ancient civilizations.

Explanation

The Muhammadan Anglo-Oriental College was founded by the pioneering Muslim reformer Sir Syed Ahmad Khan in 1875 at Aligarh. Sir Syed Ahmad Khan envisioned this institution as a center to impart modern scientific education alongside traditional Islamic values to the Muslim community in India. The college was a major milestone of the Aligarh Movement and was later incorporated as the Aligarh Muslim University in 1920.

Explanation

Sankhya is widely regarded as the oldest of the six orthodox schools of Indian philosophy. Founded by the sage Kapila, the school is dualistic in nature and posits that the universe is composed of two independent realities: Purusha (pure consciousness) and Prakriti (matter or nature). All other schools, including Yoga, Vaisesika, and Karma Mimansa, developed subsequent to the foundations laid down by the Sankhya system.

Explanation

Let today be represented as T. The day before yesterday is T - 2. Since the day before yesterday was Monday, we can find today by adding two days to Monday, which gives Wednesday. Tomorrow is T + 1, which is Thursday. The third day after tomorrow is (T + 1) + 3 = T + 4. Adding four days to Wednesday yields Sunday.

Explanation

The Toda people are a small, pastoral tribal community who traditionally reside in the secluded Nilgiri Hills of Tamil Nadu in southern India. Their economy and daily lifestyle are deeply centered around grazing, managing, and worshipping sacred herds of long-horned water buffaloes.

Explanation

Around the year 2010, India's domestic crude oil production stood at roughly 33.7 million metric tonnes, whereas its rapidly growing industrial and economic demand required the country to refine and process around 190 million metric tonnes of crude oil. To bridge this gap, India had to import approximately 159 million metric tonnes of crude oil. Consequently, India's import dependency for crude oil stood at around 80% of its total requirements. This heavy reliance on foreign imports made the Indian economy highly sensitive to international crude price volatility and geopolitical developments in major oil-producing regions like the Middle East.

Explanation

Kapildhara Falls is a prominent waterfall located on the Narmada River. It is situated in the Anuppur district of Madhya Pradesh, approximately 6 kilometers from the Narmada Kund, which is the origin source of the Narmada River at Amarkantak. The waterfall cascades down from a height of about 100 feet and is surrounded by dense forests and mountains. It derives its name from the legendary sage Kapil Muni, who is believed to have lived and performed deep meditation at this scenic site.

Explanation

An electric motor is a device that converts electrical energy into mechanical energy. It operates on the principle of electromagnetic induction, where a current-carrying conductor placed in a magnetic field experiences a physical force. This force generates torque on the rotor, causing it to rotate and produce mechanical work.

Explanation

The 73rd Constitutional Amendment Act of 1992 added Part IX to the Constitution of India, titled "The Panchayats", which provided constitutional status and a guarantee for the establishment of Panchayati Raj institutions at the village, intermediate, and district levels.

Additionally, the amendment stipulated a five-year term of office for every Panchayat. It also mandated that the superintendence, direction, and control of the preparation of electoral rolls and the conduct of all Panchayat elections be vested in a State Election Commission to ensure regular, free, and fair elections.

Explanation

The National Bank for Agriculture and Rural Development (NABARD) is the apex development financial institution in India for agriculture and rural development. In 1992, NABARD launched the Self-Help Group-Bank Linkage Programme (SHG-BLP), which has grown into the world's largest microfinance initiative. Under this programme, NABARD acts as the premier promoting and coordinating agency that facilitates the integration of informal self-help groups (SHGs) comprising socially and economically homogeneous individuals with the formal banking system. This is done in collaboration with commercial banks, regional rural banks, co-operative banks, and non-governmental organisations (NGOs) to provide thrift, credit, and other financial services to the rural poor without requiring physical collateral.

Explanation

Nadir Shah, the Emperor of Persia, invaded India and defeated the Mughal forces under Muhammad Shah at the Battle of Karnal in February 1739. Following his victory, he marched into Delhi in March 1739, where he ordered a massacre of the population and plundered the imperial treasury, carrying away legendary treasures like the Koh-i-Noor diamond and the Peacock Throne.

Explanation

Capillary action, or capillarity, is the physical phenomenon where liquid flows into narrow spaces without the assistance of, and often in opposition to, external forces like gravity. Cotton cloth is composed of woven fibers that contain extremely fine, microscopic pores and channels. When one end of the cloth is dipped in water, these narrow spaces act as capillary tubes. The adhesive forces between the water molecules and the cotton fibers, along with the cohesive forces within the water itself, draw the water molecules upward through the tiny gaps in the fabric. This movement of water through the interlocking fibers allows the moisture to spread, ultimately making the entire piece of cloth wet.

Explanation

Megasthenes was a Greek historian and diplomat who was sent as an ambassador by Seleucus I Nicator, the ruler of the Seleucid Empire, to the court of the Mauryan Emperor Chandragupta Maurya in Pataliputra. During his stay in India, he compiled his detailed observations of Indian society, administration, and geography in his book titled Indica, which serves as a vital historical source for the Mauryan period.

Explanation

The total number of mangoes in all four baskets is given by: S = 15 + 18 + 21 + 22 = 76

Let x be the number of mangoes in the basket kept by Pinkubabu for his family. The remaining mangoes are distributed equally among 5 friends, which means the sum of the remaining mangoes must be divisible by 5.

Mathematically, this condition can be written as: (76 - x) ≡ 0 5

This simplifies to: x ≡ 76 5 x ≡ 1 5

Among the capacities of the four baskets, 21 is the only number that leaves a remainder of 1 when divided by 5: 21 = 4 × 5 + 1

If the basket with 21 mangoes is kept, the remaining mangoes total 76 - 21 = 55, which is divisible by 5, allowing each of the five friends to receive exactly 11 mangoes.

Explanation

The Himalayas are young fold mountains formed by the tectonic collision between the Indo-Australian Plate and the Eurasian Plate. This convergent plate boundary interaction squeezed and uplifted the sedimentary rocks that had accumulated in the ancient Tethys Geosyncline, creating the highest mountain range on Earth. This process of folding and uplift began approximately 50 million years ago and continues to this day, making them active, rising fold mountains.

Explanation

Undersea plate movements, such as those occurring at convergent tectonic plate boundaries, are the primary generator of tsunamis. When tectonic plates beneath the ocean floor move abruptly during a submarine earthquake, they cause a sudden vertical displacement of the overlying water column. This rapid displacement of a massive volume of water initiates a series of powerful, long-wavelength waves that propagate outwards in all directions across the ocean, eventually growing in height as they approach shallow coastal waters to form a tsunami.

Explanation

Article 280 of the Constitution of India provides for the establishment of a Finance Commission. It is a quasi-judicial body constituted by the President of India every five years, or at such earlier time as the President considers necessary. The primary function of the Finance Commission is to make recommendations on the distribution of the net proceeds of taxes between the Union and the States, and the principles that should govern the grants-in-aid to the States out of the Consolidated Fund of India. This serves as the key constitutional mechanism for balancing fiscal relations and resources between the Centre and the States.

Explanation

Kalhana was a Kashmiri historian who authored the Rajatarangini in the 12th century CE. Written in Sanskrit, the title translates to the River of Kings. The text provides a detailed historical chronicle of the rulers of Kashmir from the earliest times up to the reign of King Jayasimha. It is highly regarded as one of the earliest and most reliable historical treatises of ancient and medieval India, demonstrating a remarkably scientific and objective approach to historical recording through the use of local epigraphs, coins, land deeds, and past chronicles.

Explanation

The Royal Titles Act of 1876 officially declared Queen Victoria as the Empress of India (Kaisar-i-Hind). To proclaim this title to the Indian rulers and the public, the first Delhi Durbar, also known as the Proclamation Durbar, was organized by Viceroy Lord Lytton in Delhi, culminating on 1 January 1877. This grand assembly marked the formal assumption of the imperial title by the British Crown over India.

Explanation

Henry Louis Vivian Derozio, a brilliant radical teacher at Hindu College in Calcutta during the late 1820s and early 1830s, was the leader and main inspiration of the Young Bengal movement. He inspired his students, famously known as the Derozians, to think freely and rationally, question all authority, love liberty, and oppose decadent social and religious customs. Under his intellectual guidance, the movement spearheaded a radical intellectual revolution, promoting free thought and civic consciousness through debates, academic associations, and publications.

Explanation

Pandit Ishwar Chandra Vidyasagar is called a traditional moderniser, a term popularized by the historian Amales Tripathi in his work Vidyasagar: The Traditional Moderniser. Vidyasagar earned this designation because he synthesized his deep scholarship in classical Sanskrit texts with modern Western concepts of humanism and rationalism. Instead of rejecting indigenous heritage, he used arguments grounded in traditional Hindu scriptures to champion progressive social reforms, most notably the legalization of Hindu widow remarriage and the widespread promotion of female literacy. This methodology enabled him to drive modern social change while remaining rooted in Indian tradition.

Explanation

Seringapatam, also known as Srirangapatna, served as the capital of the Kingdom of Mysore during the reigns of Hyder Ali and his son Tipu Sultan. Located on an island in the river Cauvery, this historic fort town was the administrative and military headquarters of Tipu Sultan's empire. It was also the site of the historic Siege of Seringapatam in 1799, where Tipu Sultan died defending his capital against the combined forces of the British East India Company and the Nizam of Hyderabad.

Explanation

The phrase "half-naked fakir" was used by Winston Churchill, who later became the Prime Minister of Great Britain, to describe Mahatma Gandhi. In February 1931, during Gandhi's negotiations with the Viceroy of India, Lord Irwin, which led to the Gandhi-Irwin Pact, Churchill expressed his displeasure at the talks. He remarked that it was alarming and nauseating to see Gandhi, whom he described as a seditious Middle Temple lawyer, posing as a half-naked fakir and striding up the steps of the Viceregal Palace to parley on equal terms with the representative of the King-Emperor. Gandhi chose to wear a simple, hand-spun cotton dhoti and shawl to identify closely with the impoverished masses of India, a powerful symbolic choice that prompted Churchill's reaction.

Explanation

Comparing CAT (356) and RAT (256), the letters A and T are common, representing the digits 5 and 6 in some order. Thus, C is represented by 3, and R is represented by 2.

Comparing CAT (356) and COW (398), the letter C is common, which represents 3. The remaining letters O and W are represented by 9 and 8.

Comparing COW (398) and DOG (490), the letter O is common. Since the digits 9 and 8 represent O and W, and DOG contains 9, O must be represented by 9. This means W is represented by 8, and the letters D and G are represented by 4 and 0.

The assigned digits so far are: C = 3 R = 2 A, T = 5, 6 O = 9 W = 8 D, G = 4, 0

The digits used are 0, 2, 3, 4, 5, 6, 8, and 9. The only remaining digits from 0 to 9 are 1 and 7.

For the word FOX, the letter O is represented by 9. The letters F and X are new letters, which must be represented by the remaining unused digits, 1 and 7. Thus, the code for FOX must be composed of the digits 7, 9, and 1, which can be arranged to form 791.

Explanation

The Swaraj Party, initially established as the Congress-Khilafat Swarajya Party in January 1923, was formed following the Gaya session of the Indian National Congress in December 1922. Chittaranjan Das, widely known as C. R. Das, served as the founder-President of the party. The party was formed with the primary objective of entering the legislative councils to advocate for self-government and disrupt British administrative machinery from within.

Explanation

Let the total number of valid votes be V. In a direct contest between two candidates, the sum of their shares equals the total valid votes.

Since Surupa secured 60% of the total votes, Ananya received the remaining 40% of the votes.

The difference in their vote shares represents the margin of victory: 60% of V - 40% of V = 60 20% of V = 60 0.20 * V = 60 V = 60 / 0.20 = 300

Explanation

Let H represent hardworking, R represent rich, and S represent successful.

The first premise states that only hardworking persons become rich. This means that being hardworking is a necessary condition for becoming rich. Symbolically, if a person is rich, they must be hardworking, which can be written as R ⟹ H. The contrapositive of this conditional statement is that if a person is not hardworking, they cannot be rich, written as ¬H ⟹ ¬R.

The second premise states that all successful persons are hardworking, which can be written as S ⟹ H. The contrapositive of this statement is that if a person is not hardworking, they cannot be successful, written as ¬H ⟹ ¬S.

By combining these two contrapositives, if a person is not hardworking, they are guaranteed to be neither successful nor rich, which is symbolically represented as ¬H ⟹ (¬S ∧ ¬R). Since Duke is not hardworking, it logically follows that he is neither successful nor rich.

Explanation

According to the 2001 Census of India, Uttar Dinajpur registered the highest decadal population growth rate in West Bengal, standing at 28.72% for the 1991–2001 period. This high growth rate was driven by demographic factors and socio-economic dynamics in this border district.

Explanation

The Simon Commission, officially known as the Indian Statutory Commission, was appointed by the British government in November 1927 under the chairmanship of Sir John Simon. Its primary mandate was to review the working of the Government of India Act 1919 and to recommend further constitutional reforms and progress toward representative government in India.

Explanation

Lord William Bentinck, serving as the Governor-General of India, officially decided in favour of Western education through the passage of the English Education Act of 1835. This decision was heavily influenced by Thomas Babington Macaulay's Minute on Indian Education, which strongly advocated for English as the medium of instruction and the dissemination of Western sciences and literature. By endorsing these proposals, Bentinck directed that government educational funds be spent primarily on promoting Western education in English, establishing a new direction for the Indian educational system.

Explanation

The Hindu Widows Remarriage Act, 1856, also known as Act XV of 1856, was officially passed and enacted on 26 July 1856. Although the drafting of the bill was completed during the tenure of Lord Dalhousie, it was enacted under the administration of Lord Canning, who assumed office as the Governor-General of India in February 1856. This landmark social reform legislation legalized the remarriage of Hindu widows and established legal protections for them and their children.

Explanation

The terms of the sequence are generated by the recurrence relation aₙ = 3aₙ₋₁ + 1 starting with a₁ = 1. Following this formula:

a₂ = 3(1) + 1 = 4

a₃ = 3(4) + 1 = 13

a₄ = 3(13) + 1 = 40

a₅ = 3(40) + 1 = 121

a₆ = 3(121) + 1 = 364

Alternatively, the difference between consecutive terms follows a geometric progression with a common ratio of 3:

4 - 1 = 3 (which is 3¹)

13 - 4 = 9 (which is 3²)

40 - 13 = 27 (which is 3³)

The next difference must be 3⁴ = 81, giving the term 40 + 81 = 121, after which the next difference is 3⁵ = 243, giving 121 + 243 = 364.

Explanation

By placing the eight individuals in a circular arrangement facing the centre, we can determine their positions step-by-step:

Let the eight positions around the circle be numbered 1 to 8 in clockwise order. Since all persons face the centre, moving clockwise represents moving to the left, and moving counter-clockwise represents moving to the right.

Let F be seated at position 1.

D is second to the left of F, which puts D at position 3.

D is third to the right of H. Since right is counter-clockwise, moving three positions counter-clockwise from H brings us to D (at position 3). This means H is at position 6.

A is second to the right of F, which places A at position 7 (two positions counter-clockwise from 1). This satisfies the condition that A is an immediate neighbour of H (at position 6).

F is third to the right of B. Since right is counter-clockwise, moving three positions counter-clockwise from B brings us to F (at position 1). Thus, B is at position 4.

C is second to the right of B. Since B is at position 4, moving two positions counter-clockwise places C at position 2.

At this stage, the positions occupied are: 1: F 2: C 3: D 4: B 5: Vacant 6: H 7: A 8: Vacant

The remaining positions to be filled are 5 and 8, and the remaining people are G and E. Since G is not an immediate neighbour of F, G cannot sit at position 8 (which is adjacent to F at position 1). Therefore, G must sit at position 5, leaving position 8 for E.

The final clockwise arrangement is: 1: F, 2: C, 3: D, 4: B, 5: G, 6: H, 7: A, 8: E

Since A is at position 7 and facing the centre, the immediate left (clockwise direction) of A is position 8, which is occupied by E.

Explanation

The given sequence is a combination of three alternating sub-sequences.

The first sub-sequence consists of the terms at the first, fourth, and seventh positions: 4, 6, ... This sequence increases by 2 at each step. Thus, the seventh term is 6 + 2 = 8.

The second sub-sequence consists of the terms at the second, fifth, and eighth positions: 5, 5, ... This sequence remains constant.

The third sub-sequence consists of the terms at the third, sixth, and ninth positions: 5, 7, ... This sequence also increases by 2 at each step.

Since the next term in the sequence is the seventh term, it is determined by the first sub-sequence. This gives 6 + 2 = 8.

Explanation

Sal (Shorea robusta) is a major hardwood tree species belonging to the family Dipterocarpaceae. It is a defining component of tropical deciduous forests across India, especially in the sub-Himalayan region, Central India, and parts of the Eastern Ghats. Sal trees are characteristically deciduous, shedding their leaves during the dry season between February and April and growing new leaves shortly after to conserve water.

Explanation

The Life Divine is the principal philosophical work of Sri Aurobindo (Aurobindo Ghosh). It was originally published serially in his monthly journal Arya between 1914 and 1919, and was later revised and published in book form. In this work, Sri Aurobindo presents his theory of spiritual evolution, outlining the concept of integral yoga and the transformation of human life into a divine life on earth through the descent of the supermind.

Explanation

The Community Development Programme was launched in India on October 2, 1952, coinciding with the birth anniversary of Mahatma Gandhi. It was introduced during the First Five-Year Plan as a major initiative aimed at the holistic development of rural areas, focusing on sectors such as agriculture, communication, education, health, and housing through active community participation and self-reliance.

Explanation

Amrita Bazar Patrika was founded in 1868 by Sisir Kumar Ghosh and his brothers, including Motilal Ghosh, in the village of Amrita Bazar in the Jessore district of undivided Bengal. Initially launched as a Bengali weekly, the publication converted overnight into an English-language newspaper in 1878 to circumvent the restrictive provisions of Lord Lytton's Vernacular Press Act. Sisir Kumar Ghosh served as its editor and used the platform to champion the nationalist cause and advocate for Indian self-determination, making it one of the most influential nationalist newspapers of the colonial era.

Explanation

The Interim Government of India was formed on 2 September 1946 under the leadership of Jawaharlal Nehru. Although the Muslim League initially boycotted the government, negotiations continued between the Viceroy Lord Wavell and Muhammad Ali Jinnah. These discussions culminated in the Muslim League deciding to join the Interim Government on 26 October 1946. Five representatives of the Muslim League were sworn into the cabinet, with Liaquat Ali Khan taking charge of the critical Finance portfolio.

Explanation

Tapan Sinha was an acclaimed filmmaker who directed highly regarded films in both Bengali and Hindi.

His 1972 Hindi film Zindagi Zindagi is a social drama featuring Sunil Dutt, Waheeda Rehman, and Ashok Kumar.

His 1974 film Sagina is a Hindi drama starring Dilip Kumar and Saira Banu, which was a remake of Sinha's own critically acclaimed 1970 Bengali film Sagina Mahato.

His 1990 Hindi film Ek Doctor Ki Maut is a National Film Award-winning drama starring Pankaj Kapur and Shabana Azmi, depicting a scientist's struggle against professional bureaucracy.

Explanation

The famous Bengali play Nil Darpan, originally written by Dinabandhu Mitra to portray the atrocities and exploitation faced by indigo farmers under British planters, was translated into English by Michael Madhusudan Dutt. Published in 1861 under the title Nil Darpan; or, The Indigo Planting Mirror, this translation successfully drew widespread attention to the brutal practices of the indigo trade in Bengal.

Explanation

The Sundarbans National Park in West Bengal, the core area of the Sundarbans delta and tiger reserve, was inscribed by UNESCO on its World Heritage List in 1987 under natural criteria for its unique mangrove ecosystem and population of Royal Bengal Tigers. (The adjacent Sundarbans in Bangladesh was separately listed in 1997, and the wider area became a Ramsar wetland later, but the Indian park's World Heritage recognition dates to 1987.)

Explanation

The Bhakra Nangal Project is one of the earliest multipurpose river valley projects initiated after India's independence. The Bhakra Dam is constructed across the Sutlej River in the Bilaspur district of Himachal Pradesh. It is a concrete gravity dam that forms the Gobind Sagar reservoir, which stores water for irrigation and hydroelectric power generation, serving the states of Punjab, Haryana, and Rajasthan.

Explanation

The Bailadila range, located in the Dantewada district of Chhattisgarh, is renowned for harboring some of the richest deposits of high-grade hematite iron ore in the world. The National Mineral Development Corporation (NMDC) operates highly mechanized mines in this region to extract this premium quality ore. A significant portion of the iron ore produced from the Bailadila mines is transported via a dedicated pipeline and railway line to the Visakhapatnam port, from where it is exported to countries like Japan and South Korea.

Explanation

The landmark United Nations World Conference against Racism, officially known as the World Conference against Racism, Racial Discrimination, Xenophobia and Related Intolerance, was held in Durban, South Africa, from August 31 to September 8, 2001. The conference led to the adoption of the historic Durban Declaration and Programme of Action, which serves as a comprehensive global framework for combating racism, discrimination, and related intolerance worldwide.

Explanation

The Non-Cooperation Movement, initiated by Mahatma Gandhi in 1920, was merged with the Khilafat Movement to harness the anger of Indian Muslims over the treatment of the Ottoman Caliphate by the British after World War I. Gandhi recognized the Khilafat issue as a historic opportunity to bridge Hindu-Muslim differences and build a formidable, united national front against British colonial rule. At the Calcutta session of the Indian National Congress in September 1920, Gandhi convinced other leaders of the need to support Khilafat in combination with the demand for Swaraj, leading to a joint mass struggle that brought both communities together on a shared political platform.

Explanation

Tech Mahindra acquired a controlling 31 percent stake in Satyam Computer Services in April 2009 through a government-facilitated auction process following the revelation of a major financial fraud by Satyam's founder. The acquisition was executed through Tech Mahindra's subsidiary, Venturbay Consultants Private Limited, and the company was subsequently rebranded as Mahindra Satyam.

Explanation

The All India Trade Union Congress was founded on October 31, 1920, in Bombay to provide a centralized platform for the labor movement in India and coordinate trade union activities. Lala Lajpat Rai, the eminent nationalist leader, was elected as its first President during the inaugural session, where he emphasized the critical link between the working class and the struggle for national independence.

Explanation

The Partition of Bengal, implemented by Lord Curzon in 1905, was annulled in 1911 during the Delhi Durbar held in honor of King George V and Queen Mary. The decision to withdraw the partition was taken in response to the massive protests, boycott campaigns, and the Swadeshi movement that had erupted across India to oppose the division of Bengal along communal lines. Consequently, Bihar and Orissa were separated from Bengal, and Assam became a separate province, while the capital of British India was shifted from Calcutta to Delhi in the same year.

Explanation

The coding pattern follows an incremental addition to the alphabetical position of each letter in the word.

For the word LALGARH, the positions of the letters are shifted progressively: L is shifted by +1 to get M A is shifted by +2 to get C L is shifted by +3 to get O G is shifted by +4 to get K A is shifted by +5 to get F R is shifted by +6 to get X H is shifted by +7 to get O

Applying this exact progressive shifting pattern to the word ANDOLAN: A is shifted by +1 to get B N is shifted by +2 to get P D is shifted by +3 to get G O is shifted by +4 to get S L is shifted by +5 to get Q A is shifted by +6 to get G N is shifted by +7 to get U

This gives the coded word BPGSQGU.

Explanation

The Khilafat Movement was launched in India in 1919 under the leadership of the Ali brothers, Mohammad Ali and Shaukat Ali. They founded the All India Khilafat Committee to protest against the post-World War I dismantling of the Ottoman Empire and the reduction of the spiritual and temporal authority of the Ottoman Caliph, who was regarded as the religious leader of the Sunni Muslim community worldwide.

Explanation

Bauxite is the primary ore used in the extraction and production of aluminium. In Madhya Pradesh, major bauxite reserves are located in the Amarkantak plateau of Anuppur district, as well as in Katni, Jabalpur, and Shahdol. The bauxite mined from these regions is supplied to domestic aluminium refineries and smelters, such as Hindalco and BALCO, to be processed into aluminium.

Explanation

Let the number be x.

According to the problem, adding 50 to 60% of the number results in the number itself:

0.60x + 50 = x

Subtracting 0.60x from both sides of the equation gives:

0.40x = 50

Solving for x:

x = (50)/(0.40) = 125

Explanation

Under the Regulating Act of 1773, the post of the Governor of Bengal was elevated to the Governor-General of the Presidency of Fort William (commonly referred to as the Governor-General of Bengal). This administrative reform centralized British control in India, giving the Governor-General supervision over the presidencies of Madras and Bombay. Warren Hastings, who was already serving as the Governor of Bengal, was appointed as the first Governor-General under this Act in 1773.

Explanation

A has three children: a daughter C, and two sons B and D.

Among the three grandsons of A (E, G, and M), E is the only son of B, and M is the only son of D. This leaves the third grandson, G, who must be the son of C.

Since G is the son of C, and B is the brother of C, B is the maternal uncle of G.

Explanation

HIV (Human Immunodeficiency Virus), the causative agent of AIDS, is a retrovirus. Retroviruses are characterized by having an RNA genome. Specifically, HIV contains two copies of single-stranded RNA as its genetic material, along with the enzyme reverse transcriptase, which allows it to transcribe its RNA into DNA once inside the host cell.

Explanation

Let the scores of the 19 students in ascending order be S₁, S₂, …, S₁₉.

The best 10 scores are the highest 10 scores, which are S₁₀, S₁₁, …, S₁₉. The sum of these scores is: 10 × 69 = 690

The worst 10 scores are the lowest 10 scores, which are S₁, S₂, …, S₁₀. The sum of these scores is: 10 × 38 = 380

The sum of all 19 scores is: 19 × 54 = 1026

Adding the sum of the best 10 scores and the worst 10 scores counts the 10th score, S₁₀, twice. This relation can be written as: S₁₀ = Sum of worst 10 + Sum of best 10 - Sum of all 19

Substituting the calculated sums: S₁₀ = 380 + 690 - 1026 S₁₀ = 1070 - 1026 = 44

Explanation

The Fiscal Responsibility and Budget Management (FRBM) Act, 2003 was enacted to institutionalize financial discipline and reduce the country's fiscal imbalances. It specifically set target limits and reduction pathways for both the fiscal deficit and the revenue deficit of the central government. The Act aimed to eliminate the revenue deficit entirely and bring down the fiscal deficit to a sustainable level of 3% of the Gross Domestic Product (GDP), making both indicators central to its legislative mandate.

Explanation

Genghis Khan reached the banks of the Indus River in 1221 A.D. while pursuing the Khwarazmian prince, Jalal-ud-din Mangabarni. This occurred during the reign of Shams-ud-din Iltutmish, the Sultan of Delhi. By diplomatically refusing to grant asylum to the Khwarazmian prince, Iltutmish successfully averted a direct Mongol invasion of the Delhi Sultanate.

Explanation

The Malabar series is the primary annual joint naval exercise conducted between the Indian Navy and the United States Navy. These exercises are traditionally scheduled during other periods of the year; for example, Malabar 2009 took place in April–May, and Malabar 2010 was held in May.

While the Indian Navy hosted the multinational naval exercise Milan in February 2010, the United States Navy did not participate in that event. Consequently, there was no joint naval exercise in February between India, the United States, and Japan, Australia, or South Korea.

Explanation

Following the 86th Constitutional Amendment in 2002, the preliminary drafting and legislative work on the Right to Education Bill was initiated under the UPA government in 2005.

Under Section 12(1)(c) of the Act, private unaided schools must reserve 25 percent of entry-level seats for children from economically weaker and disadvantaged sections of the neighbourhood.

Section 16 and Section 17 of the Act strictly prohibit holding back (detention) or expelling any child before they complete elementary education, alongside banning physical punishment and mental harassment.

Explanation

Maharaja Ranjit Singh, the founder of the Sikh Empire, was popularly known as Sher-i-Punjab, which translates to the Lion of Punjab. He was given this title in recognition of his extraordinary bravery, valor, and military genius, which helped him unify the various Sikh misls into a powerful empire in northwestern India during the early nineteenth century. Under his leadership, the empire successfully defended the region against foreign invasions and established a prosperous, stable state with its capital at Lahore.

Explanation

The Yash Pal Committee was constituted by the Ministry of Human Resource Development in 2008 to advise on the renovation and rejuvenation of higher education in India. Submitted in 2009, the committee's report recommended structural changes to the higher education system, including the creation of a single, overarching regulatory body called the National Commission for Higher Education and Research to replace existing regulators like the University Grants Commission and the All India Council for Technical Education. It also emphasized promoting interdisciplinary learning and preserving the autonomy of universities.

Explanation

Compressed Natural Gas is a clean-burning alternative fuel composed primarily of methane. To curb rising levels of urban air pollution, judicial mandates and government policies directed public transport fleets, including autorickshaws, to transition to this fuel. Its combustion produces significantly lower levels of carbon monoxide, nitrogen oxides, sulfur dioxide, and particulate matter, thereby substantially reducing vehicular emissions and improving urban air quality.

Explanation

Software services are a key driver of India's service exports, representing the largest share of invisible earnings in the balance of payments. Unlike merchandise exports which often require high import components for raw materials and machinery, software service exports have extremely low import intensity. Consequently, they yield a highly significant net surplus in foreign exchange, providing the largest net inflow and contribution to India's foreign exchange reserves in value terms.

Explanation

Adigranth, often printed with typographical variations such as Adirghant, is the holy scripture of Sikhism. It was first compiled in 1604 by the fifth Sikh Guru, Guru Arjan Dev, and installed at the Golden Temple in Amritsar. The text is a compilation of hymns and teachings composed by the first five Sikh Gurus as well as several medieval Hindu and Muslim saints. Later, the tenth Guru, Guru Gobind Singh, added the hymns of the ninth Guru, Guru Tegh Bahadur, and declared the scripture as the final, eternal Guru of the Sikhs, after which it became known as the Guru Granth Sahib.

Explanation

Alberto Fujimori served as the President of Peru from 28 July 1990 to 22 November 2000. He is widely recognized for stabilizing the Peruvian economy through market-oriented reforms and successfully dismantling the Shining Path insurgent movement during his tenure.

Explanation

Jatindranath Mukherjee, a prominent revolutionary leader during the Indian independence movement and the leader of the Jugantar party, was popularly known as Bagha Jatin. He earned this epithet after a legendary encounter in 1906, when he single-handedly killed a Royal Bengal Tiger with a dagger to protect a village. After this heroic act, he became widely celebrated as Bagha Jatin (Tiger Jatin). He went on to play a critical role in organizing revolutionary networks across Bengal, including the Indo-German Conspiracy during World War I, before his martyrdom in 1915 following a gun battle with British police in Balasore, Odisha.

Explanation

The All India Home Rule League was founded by Annie Besant in September 1916 in Madras. Inspired by the Irish Home Rule Movement, she established this league to demand self-government for India within the British Empire through peaceful and constitutional means. Her league had a nationwide scope with over 200 branches spreading awareness, organizing public meetings, and distributing literature across regions of India.

Explanation

Let the initial position A be represented as the origin (0, 0) in a coordinate plane, where the positive x-axis represents East and the positive y-axis represents North.

From A, Ayan moves 2 km due west to reach point D. The coordinates of D are (-2, 0).

From D, he moves 8 km due east to reach point B. The x-coordinate of B is -2 + 8 = 6, making the coordinates of B (6, 0).

From B, he moves 8 km due north to reach point C. The y-coordinate of C is 0 + 8 = 8, making the coordinates of C (6, 8).

The straight-line distance from A(0, 0) to C(6, 8) is calculated using the distance formula:

Distance = √((6 - 0)² + (8 - 0)²) = √(36 + 64) = √(100) = 10 km

Explanation

The Forest Protection Committees (FPCs) in West Bengal, pioneered under the Joint Forest Management (JFM) program starting with the Arabari experiment in 1971-72, are constituted through a collaborative, tripartite partnership. Structurally, these committees consist of local forest villagers, representatives from the local Panchayat (specifically through the Gram Panchayat and Panchayat Samiti), and officials from the Forest Department. This integrated framework ensures active local participation in protecting forest resources while securing livelihood benefits and resource-sharing rights for the community.

Explanation

The Jallianwala Bagh massacre occurred on 13 April 1919 in Amritsar, Punjab. On this day, a large crowd had gathered at the Jallianwala Bagh to peacefully protest the arrest of two nationalist leaders, Dr. Saifuddin Kitchlew and Dr. Satyapal, under the Rowlatt Act, as well as to celebrate the festival of Baisakhi. Acting Brigadier-General Reginald Dyer blocked the main entrance of the ground and ordered his troops to open fire on the unarmed assembly, resulting in hundreds of deaths and playing a decisive role in shifting the Indian national movement towards demanding complete independence.

Explanation

Shivaji was formally crowned as the Chhatrapati (supreme sovereign) of the Maratha Empire at the Raigad Fort on June 6, 1674. The elaborate coronation ceremony was officiated by the renowned priest Gaga Bhatt of Varanasi, which established Shivaji as an independent and legitimate Hindu monarch.

Explanation

The inter-state river water dispute between Karnataka and Tamil Nadu primarily centers on the sharing of the waters of the Cauvery River. This historical conflict originates from agreements signed in 1892 and 1924 between the Madras Presidency and the Kingdom of Mysore. To resolve the sharing issues, the Central Government constituted the Cauvery Water Disputes Tribunal in 1990 under the Inter-State River Water Disputes Act of 1956 to adjudicate water allocation among the basin states, which also include Kerala and Puducherry.

Explanation

Lakshadweep is an archipelago of coral islands in the Arabian Sea, entirely composed of atolls and associated reefs. These atolls represent a classic coral reef ecosystem characterized by ring-shaped reefs enclosing shallow lagoons. The region offers ideal environmental conditions, such as warm tropical waters, high salinity, and abundant sunlight, which are crucial for the growth and sustenance of a rich variety of reef-building corals.

Explanation

Bankura district is located in the western part of West Bengal, representing a transition zone between the Chota Nagpur Plateau and the lower Gangetic plains. The soil of this region is predominantly lateritic, characterized by its acidic nature, low organic matter content, and poor moisture retention capability. Formed under conditions of high temperature and heavy seasonal rainfall, the intense leaching process removes silica, leaving behind soil rich in hydrated oxides of iron and aluminum, which gives it a distinctive reddish-brown appearance.

Explanation

Morarji Desai served as the Prime Minister of India from 1977 to 1979, heading the Janata Party government. His assumption of office marked the first time since India's independence in 1947 that a non-Congress coalition formed the government at the Centre, ending thirty years of continuous rule by the Indian National Congress.

Explanation

Lord Mayo, who served as the Viceroy and Governor-General of India from 1869 to 1872, was assassinated while in office. During an official visit to the penal settlement of Port Blair in the Andaman and Nicobar Islands, he was stabbed to death by a Pathan convict named Sher Ali Afridi on 8 February 1872. He remains the only Viceroy of India to have been assassinated during his tenure.

Explanation

The Iranian Islamic Revolution culminated in February 1979 with the overthrow of the Pahlavi dynasty and the establishment of the Islamic Republic of Iran under the leadership of Ayatollah Ruhollah Khomeini. In February 2009, Iran marked the 30th anniversary of this event with a series of nationwide rallies and commemorations, celebrating three decades since the revolution.

Explanation

Prior to the Sixth Five Year Plan (1980–1985), the removal of unemployment was a stated objective, but it was generally assumed that general economic growth would automatically resolve the employment problem. The Sixth Five Year Plan departed from this assumption by explicitly formulating a bold and direct long-term employment policy to tackle unemployment in a forthright manner. It recognized that the trickle-down effect of economic growth was insufficient to generate necessary employment opportunities. Consequently, it emphasized self-employment ventures in agriculture, cottage and small-scale industries, and launched major targeted employment programmes such as the Integrated Rural Development Programme and the National Rural Employment Programme.

Explanation

Dr. Rajendra Prasad was elected as the permanent President of the Constituent Assembly on December 11, 1946. He succeeded Dr. Sachchidananda Sinha, who had served as the temporary President during the inaugural meeting on December 9, 1946. Dr. Prasad presided over the deliberations and sessions of the Assembly, steering the process of drafting and finalizing the Constitution of India until its adoption.

Explanation

The Calcutta School Book Society (widely known as the School Book Society) was established in May 1817 in Calcutta by the Scottish philanthropist and educator David Hare, with active support from local leaders like Radhakanta Deb. The primary objective of this society was to prepare, publish, and distribute cheap or free textbooks in English and Indian vernacular languages to support the system of Western and modern education in India.

Explanation

The Nagarjunasagar Multipurpose Project is built across the Krishna River. Constructed between 1955 and 1967, it is one of the earliest multi-purpose irrigation and hydro-electric projects in India. The dam is located on the border between the Guntur district of Andhra Pradesh and the Nalgonda district of Telangana, creating a massive reservoir that provides water for irrigation to several districts and generates substantial hydroelectric power.

Explanation

A demarche is a formal diplomatic representation, petition, or protest made by one government to another, conveying its official stance, concerns, or requests on a specific issue. It serves as a standard communication tool in international relations to formally register a state's position, seek clarifications, or demand action, as seen when India issued diplomatic representations to Pakistan following the 2008 Mumbai terror attacks.

Explanation

In July 2009, Urumaqi, the capital city of the Xinjiang Uyghur Autonomous Region in China, witnessed severe ethnic riots. The violence erupted between the minority Uyghurs and the majority Han Chinese population. It began as a demonstration protesting the deaths of Uyghur migrant workers during a brawl at a toy factory in Shaoguan. The situation rapidly deteriorated into widespread clashes and rioting, causing nearly two hundred deaths and leaving over a thousand people injured. Chinese authorities deployed thousands of security personnel and imposed a curfew to control the unrest.

Explanation

Let R represent a 90-degree right turn (clockwise) and L represent a 90-degree left turn (counter-clockwise). Since a right turn and a left turn of equal magnitude cancel each other out, we can compute the net turn as:

Net turns = 2R + 3L + 2R = 4R + 3L = 1R

Starting from the East, a single right turn of 90 degrees clockwise points to the South direction.

Explanation

Glycolysis, the initial stage of cellular respiration, is a universal metabolic pathway that occurs entirely within the cytosol of the cell. During this process, a six-carbon glucose molecule is enzymatically broken down into two molecules of three-carbon pyruvate, yielding a net gain of two ATP molecules and two NADH molecules. Since all the enzymes required for these sequential reactions are dissolved in the cytosol, this cellular compartment plays a fundamental role in executing glycolysis.

Explanation

Dadabhai Naoroji presided over the second session of the Indian National Congress, which was held in Calcutta in December 1886. During this landmark session, the Indian National Congress merged with the Indian National Association, which had been founded by Surendranath Banerjee and Anandamohan Bose, thereby consolidating the early nationalist voice. Known as the Grand Old Man of India, Dadabhai Naoroji played a pioneering role in the early nationalist movement and also became the first Indian to be elected to the British House of Commons. He went on to preside over two more Congress sessions, namely Lahore in 1893 and Calcutta in 1906.

Explanation

The Royal Titles Act of 1876 was an Act of the Parliament of the United Kingdom that officially recognized Queen Victoria as the Empress of India (Kaiser-i-Hind). This legislation allowed her to formally adopt the imperial title, which was officially proclaimed at the Delhi Durbar on January 1, 1877, under the administration of the Viceroy Lord Lytton.

Explanation

Under the Mughal administrative system established by Akbar, the Mir Bakshi was the head of the military department. This officer was responsible for military organization, which included the recruitment of soldiers, maintaining the army muster rolls, enforcing the branding of horses, and supervising the mansabdari system. The Mir Bakshi also played a central role in assigning security duties, reviewing troops, and recommending appointments and promotions of military commanders directly to the emperor.

Explanation

In the wake of the 2008 global financial crisis and mounting debts exceeding 172 billion USD, General Motors (GM) filed for Chapter 11 bankruptcy protection on June 1, 2009. This landmark filing in the Manhattan federal bankruptcy court was one of the largest corporate bankruptcies in United States history. Under the bankruptcy reorganization, which was heavily backed by the U.S. government through the Troubled Asset Relief Program (TARP), the company sold its viable assets to a newly formed entity and shed several underperforming brands, ultimately emerging from bankruptcy court protection within forty days.

Explanation

The River Ganga, along with the Brahmaputra, empties into the Bay of Bengal by forming the Ganges-Brahmaputra Delta, also known as the Bengal Delta or Sundarbans Delta, which is the largest river delta in the world. As the river nears the coast, its gradient and flow velocity decrease dramatically, causing it to deposit the massive loads of sediment and silt transported from the Himalayas. This heavy deposition splits the river into a network of distributaries, resulting in the formation of a highly fertile arcuate delta before the waters discharge into the sea.

Explanation

Part III of the Indian Constitution, rather than Part II, contains Articles 12 to 35 which deal with the Fundamental Rights of Indian citizens. Part II of the Constitution specifically covers Articles 5 to 11 and deals with Citizenship.

The Right to Property was originally a Fundamental Right under Article 19(1)(f) and Article 31, but it was deleted from the list of Fundamental Rights by the 44th Constitutional Amendment Act of 1978. It was subsequently made a constitutional and legal right under Article 300A in Part XII of the Constitution.

Explanation

The United Nations General Assembly declared 2009 as the International Year of Astronomy. This global celebration marked the 400th anniversary of Galileo Galilei's first recorded astronomical observations with a telescope in 1609, as well as the publication of Johannes Kepler's Astronomia nova. Coordinated by the International Astronomical Union (IAU) and UNESCO, the initiative aimed to stimulate worldwide interest in astronomy and science.

Explanation

The Diwani rights of Bengal, Bihar, and Odisha were granted to the British East India Company, represented by Robert Clive, by the Mughal Emperor Shah Alam II in 1765. This transfer of authority was formalized through the Treaty of Allahabad on August 12, 1765, following the decisive victory of the British forces in the Battle of Buxar in 1764. The grant of Diwani allowed the Company to collect revenues directly from these rich eastern provinces, establishing its financial and political supremacy in India.

Explanation

Madame Bhikhaiji Cama is widely regarded as the Mother of the Indian Revolution. She was a pioneering leader of the Indian independence movement who worked extensively from abroad to mobilize international support for India's freedom. At the International Socialist Conference held in Stuttgart, Germany, on August 21, 1907, she famously unfurled the first version of the Indian national flag. Her active role in publishing revolutionary literature like the journal Bande Mataram and her consistent support for Indian nationalists in Europe earned her this title.

Explanation

As per the 2001 Census, which was the latest available data for an exam conducted in 2010, West Bengal had the highest population density among the given states (903 persons/km2). Bihar had a population density of 881 persons/km2 in 2001.

Explanation

The Constituent Assembly of India adopted the Constitution of India on 26 November 1949. This historic occasion is recorded in the Preamble of the Constitution, which states that the people of India, in the Constituent Assembly, did adopt, enact, and give to themselves this Constitution on the twenty-sixth day of November 1949. While the entire Constitution came into full force on 26 January 1950 to mark Republic Day, several of its vital provisions, including those related to citizenship, elections, provisional parliament, and temporary and transitional provisions, became active immediately upon its adoption on 26 November 1949.

Explanation

The Third Front for the 2009 Lok Sabha Election included prominent parties like CPI(M), Janata Dal (Secular), and Samajwadi Party. IRS is not a recognized major political party in India and was not a member of the Third Front.

Explanation

On June 29, 2009, the Bombay High Court sanctioned the scheme of amalgamation and merger of Reliance Petroleum Limited with its parent company, Reliance Industries Limited. The merger became fully effective in September 2009, leading to the complete integration of the subsidiary refinery and petrochemical business into Reliance Industries.

Explanation

The Sixth Schedule of the Constitution of India, under Articles 244(2) and 275(1), deals with the administration of tribal areas in the four northeastern states of Assam, Meghalaya, Tripura, and Mizoram. It provides for the creation of Autonomous District Councils (ADCs) and Regional Councils to safeguard the rights and protect the unique culture, customs, and land of the tribal population in these regions by vesting them with legislative, judicial, executive, and financial powers.

Explanation

The process of radical economic reforms and liberalization in India, commonly referred to as the LPG (Liberalisation, Privatisation, and Globalisation) reforms, began in the year 1991. In response to a severe balance of payments crisis, the government of India led by Prime Minister P. V. Narasimha Rao and Finance Minister Dr. Manmohan Singh announced a series of structural adjustments on July 24, 1991. These measures dismantled the License Raj, reduced import tariffs, deregulated industrial licensing, and opened the Indian economy to international trade and foreign investment.

Explanation

Khutba is the formal public sermon delivered during Friday congregational prayers and on Eid celebrations. During the medieval period in India, particularly under the Delhi Sultanate and the Mughal Empire, reciting the Khutba in the name of the reigning king was a vital declaration of political sovereignty and religious legitimacy. Along with issuing coins (Sikka) in his name, having his name mentioned in the Friday Khutba was the most significant symbol of a monarch's independent authority.

Explanation

N. Gopalaswamy, a seasoned civil servant, served as the Chief Election Commissioner of India from 2006 to 2009.

Sukhadeo Thorat, a distinguished economist and academician, served as the Chairman of the University Grants Commission from 2006 to 2011.

Wajahat Habibullah, a retired civil servant, was appointed as the first Chief Information Commissioner of India, serving from 2005 to 2010.

S. Rajendra Babu, a former Chief Justice of India, served as the Chairperson of the National Human Rights Commission from 2007 to 2009.

Explanation

The advent of globalisation in India, especially post the 1991 economic reforms, led to the integration of the Indian economy with global markets. This economic transition brought a shift in urban consumer culture, characterized by the entry of multinational corporations, international brands, and foreign direct investment. Shopping malls represent this transformation by offering a unified, modern space for global retail brands, international food chains, and entertainment, symbolizing the rise of a globalized middle-class lifestyle and consumption pattern in India.

Explanation

The percentage of aluminium in the alloy is obtained by subtracting the percentages of zinc and nickel from the total:

Percentage of aluminium = 100% - (20% + 45%) = 35%

Let the total mass of the alloy be M gm. The relationship between the percentage of aluminium and its actual mass is given by:

35% of M = 105

(35 / 100) × M = 105

M = (105 × 100) / 35

M = 3 × 100 = 300 gm

Explanation

The Medical College in Kolkata, formally known as the Medical College and Hospital, Kolkata, was established on 28 January 1835 during the tenure of the Governor-General of India, Lord William Bentinck. It was founded to provide instruction in modern European medical science to native students, making it the first institute of modern medicine in India and one of the oldest in Asia.

Explanation

Roger Federer won his 15th Grand Slam singles title at the 2009 Wimbledon Championships by defeating Andy Roddick in a historic five-set final. This victory allowed him to surpass Pete Sampras's previous record of 14 Grand Slam men's singles titles, making him the most successful male player in Grand Slam history at that point in time.

Explanation

Corazon Aquino was a prominent political leader who served as the 11th President of the Philippines from 1986 to 1992. She was the first female president of the country and is widely remembered for leading the 1986 People Power Revolution, which successfully ended the dictatorial rule of Ferdinand Marcos and restored democratic governance in the Philippines.

Explanation

India signed the Trade in Goods Agreement under the broader Comprehensive Economic Cooperation Agreement (CECA) with the Association of Southeast Asian Nations (ASEAN) on 13 August 2009 in Bangkok, Thailand. This agreement aimed to establish one of the world's largest free trade areas by progressively eliminating or reducing tariffs on around 80 percent of traded goods between India and the ten ASEAN member states. The agreement came into effect on 1 January 2010.

Explanation

Darjeeling district is globally renowned for its tea plantations, which represent a classic example of plantation agriculture in West Bengal. The unique agro-climatic conditions of the Himalayan foothills, including high altitude, cool climate, well-distributed rainfall, and acidic, well-drained slopes, make this region exceptionally suitable for growing high-quality tea. Tea cultivation is a highly organized, labor-intensive commercial crop system managed as a plantation industry, which plays a major role in the economy and geography of the district.

Explanation

Zahiruddin Muhammad Babur founded the Mughal Empire in India after defeating Ibrahim Lodi in the First Battle of Panipat in 1526. He was a descendant of two of the greatest conquerors of Central Asia: Timur on his father's side, and Genghis Khan, the leader of the Mongol tribes, on his mother's side. The name of the empire, Mughal, is a Persian derivative of Mongol, commemorating his maternal ancestor Genghis Khan, while his dynasty also proudly identified as Gurkani, referencing their Timurid heritage.