Olive Ridley Turtles Mass Nesting and INS Tamal Security
Source:Indian Express ↗

Why It Matters
Species in the news (like the Olive Ridley) and newly commissioned or highlighted naval assets (INS Tamal) are high-yield areas for UPSC Prelims. Understanding the ecological significance of mass nesting and India's coastal security framework is also crucial for Mains GS-3.
Summary
This UPSC intensive revision article covers vital topics across environment, defence, and governance. It highlights the Olive Ridley turtles, renowned for their 'Arribada' mass nesting along the Odisha coast, emphasizing their 'Vulnerable' IUCN status and conservation challenges. Furthermore, it outlines INS Tamal within the context of the Indian Navy's maritime security and coastal defence capabilities. Lastly, it touches upon the 'Special Intensive Revision', an administrative drive critical for electoral governance and democratic participation.
Key Points
- Olive Ridley Turtles: Known for synchronized mass nesting called 'Arribada', primarily at Gahirmatha and Rushikulya in Odisha.
- Conservation Status: Olive Ridleys are classified as 'Vulnerable' on the IUCN Red List and are protected under Schedule I of the Wildlife Protection Act, 1972.
- INS Tamal: An Indian Naval asset contributing to India's coastal defence, strategic maritime security, and surveillance operations.
- Special Intensive Revision: An administrative and governance exercise generally conducted by the Election Commission to update and purify electoral rolls for robust democratic processes.
Important Terms
Olive Ridley Turtle
World's most abundant sea turtle, known for 'Arribada' nesting. Classified as Vulnerable by IUCN and protected under Schedule I of India’s Wildlife Protection Act, 1972.
UPSC context
GS Paper III (Environment); key indicator species for marine health and conservation initiatives like Operation Olivia.
Arribada
A Spanish term meaning 'arrival,' describing the unique synchronized mass nesting of thousands of female Olive Ridley and Kemp’s Ridley sea turtles on specific beaches.
UPSC context
GS Paper III (Biodiversity); tests knowledge of species-specific behavior and coastal conservation challenges in Odisha.
INS Tamal
An Indian Navy Talwar-class stealth guided missile frigate (Project 1135.6) built in Russia. It is the last foreign-built major warship inducted before total indigenization.
UPSC context
GS Paper III (Security/Defence); highlights maritime security, 'Atmanirbhar Bharat' in defence, and India-Russia strategic cooperation.
Special Intensive Revision
A comprehensive house-to-house enumeration process by the ECI to update electoral rolls, ensuring accuracy by removing duplicates and including new eligible voters.
UPSC context
GS Paper II (Governance/Elections); involves Article 324 and the Representation of the People Act, 1950.
Wildlife Protection Act, 1972
India's primary legal framework for protecting flora and fauna. It establishes schedules (I-VI) with varying protection levels and prohibits hunting of endangered species.
UPSC context
GS Paper III (Environment); the legal basis for all wildlife conservation and protected area management in India.
CITES
An international treaty (1973) regulating global trade in endangered plants and animals through a permit system (Appendices I, II, and III) to prevent overexploitation.
UPSC context
GS Paper III (Environment); essential international convention for regulating illegal wildlife trade and transboundary conservation efforts.
IUCN
The global authority on the status of the natural world, known for the Red List which categorizes species by extinction risk (e.g., Endangered, Vulnerable).
UPSC context
GS Paper III (Environment); standard reference for global conservation status and biodiversity policy.
Election Commission of India
A constitutional body (Article 324) responsible for administering election processes in India, including the preparation and revision of electoral rolls.
UPSC context
GS Paper II (Polity); tests understanding of constitutional bodies and their role in maintaining democratic integrity.
Prelims Trap
"Olive Ridley turtles are 'Endangered' and endemic to the eastern coast of India."
Olive Ridleys are categorized as 'Vulnerable' (not Endangered) and are circumglobal, found in warm waters of the Pacific, Atlantic, and Indian Oceans. They are not endemic to India.
Static Concepts Connected
What is the legal framework governing the preparation of electoral rolls?
- Article 324: Vests the power of superintendence, direction, and control of electoral roll preparation in the Election Commission of India.
- RPA 1950: Provides the statutory framework, detailing qualifications for voters and the administrative machinery for preparing and revising electoral rolls.
- Article 325 & 326: Guarantees universal adult suffrage, ensuring no person is ineligible for inclusion in the electoral roll on grounds of religion, race, caste, or sex.
What are the defining features of Project 1135.6 (Talwar-class) frigates?
- Russian Origin: They are a class of stealth guided-missile frigates designed and built in Russia specifically for the Indian Navy.
- Indigenous Integration: Despite their foreign origin, they are integrated with critical indigenous weapons systems, most notably the BrahMos supersonic cruise missile.
Cross-Topic Patterns
Arribada and coastal geomorphology
Mass nesting relies on seasonal sandbar formations at river mouths. This connects physical geography (coastal erosion and sea-level rise) directly to biodiversity conservation and species survival.
Electoral rolls and impending delimitation
Intensive electoral revisions are foundational for demographic mapping, connecting the ECI's routine RPA 1950 mandate directly to the politically sensitive post-2026 delimitation debates.
Expect a matched-pair question linking specific naval vessels (INS Tamal) to their foreign-origin projects (Project 1135.6/Russia) in 2026.
Linked PYQs · 2
Linked PYQs · 2
- 2015PrelimsGS1
Which one of the following is the national aquatic animal of India?
- 2025PrelimsGS1
With reference to India's defence, consider the following pairs : Aircraft type Description I. Dornier-228 : Maritime patrol aircraft II. IL-76 : Supersonic combat aircraft III. C-17 Globemaster III : Military transport aircraft How many of the pairs given above are correctly matched?