Trinamool Congress Split Tests Tenth Schedule and Parliamentary Math
Source:Indian Express ↗

Why It Matters
Understanding the mechanics of party splits and the application of the Anti-Defection Law is crucial for GS Paper 2. It illustrates how shifting parliamentary arithmetic affects the legislative process and tests the efficacy of constitutional safeguards against political defections.
Summary
A reported split within the Trinamool Congress (TMC) is set to alter parliamentary arithmetic, inadvertently strengthening the legislative hand of the ruling National Democratic Alliance (NDA). This development brings the Anti-Defection Law (Tenth Schedule) into sharp focus, particularly the threshold required for a legitimate split without incurring disqualification, and highlights the decisive role of the presiding officers in Parliament.
Key Points
- A potential split within the Trinamool Congress (TMC) is poised to alter the prevailing numerical balance in Parliament.
- A change in parliamentary arithmetic would strengthen the ruling National Democratic Alliance (NDA), easing the passage of legislation and influencing parliamentary committees.
- Under the Tenth Schedule (Anti-Defection Law), a breakaway faction must comprise at least two-thirds of the legislative party's strength to avoid disqualification.
- The situation underscores the pivotal discretionary powers of the Speaker or Chairman in deciding defection petitions and recognizing legislative mergers or splits.
Important Terms
Tenth Schedule (Anti-Defection Law)
Added by the 52nd Amendment (1985), it contains provisions for the disqualification of legislators (MPs/MLAs) on grounds of defection, aiming to ensure government stability and party discipline.
UPSC context
GS Paper II: Essential for topics on Parliament, State Legislatures, and the 52nd Amendment's impact on political stability.
91st Constitutional Amendment Act, 2003
This 2003 legislation strengthened the Anti-Defection Law by abolishing the "split" provision (1/3rd members) and raising the threshold for a valid merger to two-thirds of the legislative party.
UPSC context
GS Paper II: Tests knowledge of constitutional amendments and the evolution of legal thresholds for party mergers.
Presiding Officer
The Speaker (Lok Sabha) or Chairman (Rajya Sabha) who serves as the final adjudicating authority for disqualification petitions under the Tenth Schedule, acting as a quasi-judicial tribunal.
UPSC context
GS Paper II: Focuses on the Speaker's powers, institutional neutrality, and the separation of powers.
Kihoto Hollohan Case (1992)
A 1992 Supreme Court judgment that upheld the Tenth Schedule while declaring that the Presiding Officer's decisions are subject to judicial review on grounds like malafides or perversity.
UPSC context
GS Paper II: Crucial for understanding judicial review and the limits of legislative autonomy in India.
National Democratic Alliance (NDA)
A centre-right multi-party political coalition in India, led by the Bharatiya Janata Party (BJP), originally formed in 1998 to offer an alternative to the Congress-led government.
UPSC context
GS Paper II: Relevant for studying coalition politics, parliamentary arithmetic, and the nature of Indian political alliances.
All India Trinamool Congress (AITC)
A major Indian political party founded in 1998 by Mamata Banerjee; it currently serves as a significant opposition force in Parliament and the ruling party in West Bengal.
UPSC context
GS Paper II: Important for understanding the role of regional parties and internal party dynamics in parliamentary democracy.
Prelims Trap
A split by at least two-thirds of the legislative party's members protects them from disqualification.
The 91st Amendment (2003) completely removed protection for "splits". The two-thirds rule strictly applies only to a "merger" with another political party, not just forming a separate breakaway faction.
Static Concepts Connected
What are the exceptions to disqualification under the Tenth Schedule?
- Merger with 2/3rds: Disqualification does not apply if a party merges with another, provided at least two-thirds of its legislative members agree to the merger.
- Presiding Officers: A member elected as Speaker/Chairman is exempt if they voluntarily give up their party membership and do not rejoin any party while holding office.
How are members allocated to Parliamentary Committees?
- Proportional Representation: Committee composition mirrors the proportional numerical strength of the respective political parties in Parliament.
- Impact of Arithmetic: Splits or defections that alter party arithmetic directly reduce or increase a party's quota of members in vital Departmentally Related Standing Committees.
Cross-Topic Patterns
Tenth Schedule & Judicial Review
Kihoto Hollohan (1992) affirmed the Speaker's disqualification decisions are subject to judicial review, but courts cannot intervene prior to the Speaker making a final decision.
Defections & Floor Test Discretion
Party splits frequently trigger floor tests, linking the Speaker's Tenth Schedule powers directly with the Governor or President's discretionary authority to call a trust vote.
Expect a multi-statement question in 2026 testing the precise wording difference between 'split' (removed) and 'merger' under the 91st CAA.
Linked PYQs · 4
Linked PYQs · 4
- 2025PrelimsGS1
Consider the following statements : I. If any question arises as to whether a Member of the House of the People has become subject to disqualification under the 10th Schedule, the President's decision in accordance with the opinion of the Council of Union Ministers shall be final. II. There is no mention of the word 'political party' in the Constitution of India. Which of the statements given above is/are correct?
- 2022PrelimsGS1
With reference to anti-defection law in India, consider the following statements: 1. The law specifies that a nominated legislator cannot join any political party within six months of being appointed to the House. 2. The law does not provide any time-frame within which the presiding officer has to decide a defection case. Which of the statements given above is/are correct?
- 2014PrelimsGS1
Which one of the following Schedules of the Constitution of India contains provisions regarding anti-defection?
- 2020MainsGS2
Once a Speaker, Always a Speaker' ! Do you think this practice should be adopted to impart objectivity to the office of the Speaker of Lok Sabha ? What could be its implications for the robust functioning of parliamentary business in India?