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Tenth Schedule of the Indian Constitution (Anti-Defection Law)

Indian Polity & Governance

  • PYQs8
  • Articles1
I

Background

The Tenth Schedule is crucial for understanding the functioning of India's parliamentary democracy, party discipline, and the powers of legislative presiding officers. Its ambiguities and frequent invocation in political crises make it a recurring topic for analysis in UPSC examinations.

The Tenth Schedule of the Indian Constitution, commonly known as the Anti-Defection Law, was incorporated through the 52nd Amendment Act of 1985. Its primary objective is to prevent political defections by members of Parliament and State Legislatures, thereby ensuring governmental stability and curbing unprincipled floor-crossing.

II

Facts & tables

Constitutional Basis
Added by the 52nd Amendment Act, 1985, and later strengthened by the 91st Amendment Act, 2003.
Grounds for Disqualification
Voluntarily giving up membership of the political party, or voting/abstaining contrary to any direction issued by the political party without prior permission.
Exemptions
Disqualification does not apply in cases of a merger of a political party with another (requiring two-thirds of members to agree) or for presiding officers who voluntarily give up party membership upon election to office.
Deciding Authority
The Speaker of the Lok Sabha or the Chairperson of the Rajya Sabha (or their counterparts in State Legislatures) is the final authority on disqualification, subject to judicial review (Kihoto Hollohan case, 1992).
Static syllabus anchors
Type Reference
Conceptual area Indian Polity & Governance
Institutions & roles
Body Role
Parliament of India Legislates
State Legislatures Legislates
Supreme Court of India Interprets
Election Commission of India Determines party recognition and symbols
III

Prelims angle

Prelims angle: Statement-based questions

Prelims angle: Institutional roles and functions

  • Added by 52nd Amendment (1985), strengthened by 91st Amendment (2003).
  • Disqualifies legislators for defection (voluntarily giving up membership or defying whip).
  • Exemptions for party mergers (2/3 members) and presiding officers.
  • Decision by Speaker/Chairperson, subject to judicial review (Kihoto Hollohan case).
  • Aims to ensure political stability and party discipline.
Constitutional vs statutory — The Anti-Defection Law is a constitutional provision (Tenth Schedule), not a statutory law enacted by Parliament.

Check if created by Constitution or by Parliament.

High-confidence PYQ links
Year Framing tags
2025 Statement-based questions, Institutional roles and functions
2025 Multi-statement analysis, Conceptual understanding
2024 Factual recall, Multi-statement analysis
2021 Conceptual understanding, Multi-statement analysis
2019 Statement-based questions, Conceptual understanding
2018 Statement-based questions, Conceptual understanding
2017 Factual recall, Conceptual understanding
2014 Factual recall, Conceptual understanding

Timeline

  1. Indian Polity & Governance

    Conceptual area

  2. Prelims 2014

    Factual recall, Conceptual understanding

  3. Prelims 2017

    Factual recall, Conceptual understanding

  4. Prelims 2018

    Statement-based questions, Conceptual understanding

  5. Prelims 2019

    Statement-based questions, Conceptual understanding

  6. Prelims 2021

    Conceptual understanding, Multi-statement analysis

  7. Prelims 2024

    Factual recall, Multi-statement analysis

  8. Prelims 2025

    Statement-based questions, Institutional roles and functions

  9. Prelims 2025

    Multi-statement analysis, Conceptual understanding

  10. A legislative tangle in Maharashtra

    The Anti-Defection Law, enshrined in the Tenth Schedule, aims to prevent political instability caused by defections, but its application, particularly concerning party splits, mergers, and the discretionary powers of presiding officers, remains a subject of legal and political debate.

See also

Tenth Schedule of the Indian Constitution (Anti-Defection Law)
Judicial Review of Executive/Policy Decisions

Past papers

In the news

thehindu.com

A legislative tangle in Maharashtra

The Anti-Defection Law, enshrined in the Tenth Schedule, aims to prevent political instability caused by defections, but its application, particularly concerning party splits, mergers, and the discretionary powers of presiding officers, remains a subject of legal and political debate.

Try these PYQs

UPSC Prelims 2025 medium Indian Polity Open full page

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 Tenth 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 are correct?

UPSC Prelims 2014 easy Indian Polity Open full page

Which one of the following Schedules of the Constitution of India contains provisions regarding anti-defection?

UPSC Prelims 2019 easy Indian Polity Open full page

With reference to the Constitution of India, consider the following statements:

1. No High Court shall have the jurisdiction to declare any central law to be constitutionally invalid.
2. An amendment to the Constitution of India cannot be called into question by the Supreme Court of India.

Which of the statements given above is/are correct?

UPSC Prelims 2018 easy Indian Polity Open full page

Consider the following statements :
1. The Parliament of India can place a particular law in the Ninth Schedule of the Constitution of India.
2. The validity of a law placed in the Ninth Schedule cannot be examined by any court and no judgement can be made on it.

Which of the statements given above is/are correct?

UPSC Prelims 2017 medium Indian Polity Open full page

Which principle among the following was added to the Directive Principles of State Policy by the 42nd Amendment to the Constitution?

Show 3 more PYQs
UPSC Prelims 2021 easy Indian Polity Open full page

We adopted parliamentary democracy based on the British model, but how does our model differ from that model?
1. As regards legislation, the British Parliament is supreme or sovereign but in India, the power of the Parliament to legislate is limited.
2. In India, matters related to the constitutionality of the Amendment of an Act of the Parliament are referred to the Constitution Bench by the Supreme Court

Select the correct answer using the codes given below.

UPSC Prelims 2024 medium Indian Polity Open full page

The Constitution (71st Amendment) Act, 1992 amends the Eighth Schedule to the Constitution to include which of the following languages?

1. Konkani
2. Manipuri
3. Nepali
4. Maithili

Select the correct answer using the code given below:

UPSC Prelims 2025 medium Indian Polity Open full page

Consider the following subjects under the Constitution of India:

I. List I–Union List, in the Seventh Schedule
II. Extent of the executive power of a State
III. Conditions of the Governor’s office

For a constitutional amendment with respect to which of the above, ratification by the Legislatures of not less than one-half of the States is required before presenting the bill to the President of India for assent?