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Anti-defection Law (Tenth Schedule)

Indian Polity & Governance

  • PYQs8
  • Articles1
I

Background

The Anti-defection Law is a cornerstone of India's parliamentary democracy, crucial for understanding legislative stability, party discipline, and the role of political parties. Its frequent invocation and judicial interpretations make it a recurring topic in current affairs and a vital part of the Indian Polity syllabus.

The Anti-defection Law, enshrined in the Tenth Schedule of the Indian Constitution, was introduced by the 52nd Amendment Act of 1985. Its primary objective is to prevent political defections by elected representatives from one party to another, thereby ensuring stability in governance and preserving the integrity of the party system.

II

Facts & tables

Introduction
Introduced by the 52nd Constitution Amendment Act, 1985.
Deciding Authority
Disqualification decided by the Speaker (Lok Sabha) or Chairman (Rajya Sabha).
Deletion of 'Split' Exception
The 'split' exception (Paragraph 3) was deleted by the 91st Constitution Amendment Act, 2003.
'Merger' Exception
The 'merger' exception (Paragraph 4) requires two-thirds of the members of a legislature party to merge with another party, but its interpretation regarding the primacy of the political party vs. legislature party is a point of contention.
Evolution of Anti-defection Law Exceptions
Provision Original (52nd Amendment, 1985) Current (Post-91st Amendment, 2003)
Split Allowed if 1/3rd members form a separate faction (Para 3) Deleted
Merger Allowed if 2/3rd members agree to merge (Para 4) Allowed if 2/3rd members agree to merge (Para 4) - interpretation debated
Static syllabus anchors
Type Reference
Conceptual area Indian Polity & Governance
Institutions & roles
Body Role
Supreme Court of India Interprets and adjudicates
Parliament of India Enacts and amends
Speaker of Lok Sabha Decides disqualification
Chairman of Rajya Sabha Decides disqualification
III

Prelims angle

Prelims angle: Statement-based questions

Prelims angle: Institutional roles and functions

  • 52nd Amendment (1985) introduced 10th Schedule.
  • Aims to curb political defections.
  • Speaker/Chairman decides disqualification.
  • 'Split' exception removed by 91st Amendment (2003).
  • 'Merger' exception (2/3rd members) remains, but its interpretation is crucial.
Constitutional vs statutory — The Anti-defection Law is a constitutional provision (10th Schedule), not a mere statutory law.

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, Factual recall
2024 Factual recall, Multi-statement analysis
2024 Statement-based questions, Factual recall
2024 Statement-based questions, Factual recall
2019 Statement-based questions, Conceptual understanding
2018 Statement-based questions, Conceptual understanding
2014 Factual recall, Conceptual understanding

Timeline

  1. Indian Polity & Governance

    Conceptual area

  2. Prelims 2014

    Factual recall, Conceptual understanding

  3. Prelims 2018

    Statement-based questions, Conceptual understanding

  4. Prelims 2019

    Statement-based questions, Conceptual understanding

  5. Prelims 2024

    Factual recall, Multi-statement analysis

  6. Prelims 2024

    Statement-based questions, Factual recall

  7. Prelims 2024

    Statement-based questions, Factual recall

  8. Prelims 2025

    Statement-based questions, Institutional roles and functions

  9. Prelims 2025

    Multi-statement analysis, Factual recall

  10. Rajya Sabha defections, constitutional questions

    The 10th Schedule (Anti-defection Law) prevents elected members from changing parties for personal gain, introduced by the 52nd Amendment. While the 'split' exception was removed by the 91st Amendment, the 'merger' exception (requiring 2/3rd members) remains, though its interpretation regarding the political party's role is debated.

See also

Anti-defection Law (Tenth Schedule)

No related topics linked yet.

Past papers

In the news

thehindu.com

Rajya Sabha defections, constitutional questions

The 10th Schedule (Anti-defection Law) prevents elected members from changing parties for personal gain, introduced by the 52nd Amendment. While the 'split' exception was removed by the 91st Amendment, the 'merger' exception (requiring 2/3rd members) remains, though its interpretation regarding the political party's role is debated.

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?

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1. Konkani
2. Manipuri
3. Nepali
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Select the correct answer using the code given below:

UPSC Prelims 2024 easy Indian Polity Open full page

Consider the following statements regarding 'Nari Shakti Vandan Adhiniyam':

1. Provisions will come into effect from the 18th Lok Sabha.
2. This will be in force for 15 years after becoming an Act.
3. There are provisions for the reservation of seats for Scheduled Castes Women within the quota reserved for the Scheduled Castes.

Which of the statements given above are correct?

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Consider the following pairs:

State – Description
I. Arunachal Pradesh : The capital is named after a fort, and the State has two National Parks.
II. Nagaland : The State came into existence on the basis of a Constitutional Amendment Act.
III. Tripura : Initially a Part 'C' State, it became a centrally administered territory with the reorganization of States in 1956 and later attained the status of a full-fledged State.

How many of the above pairs are correctly matched?

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UPSC Prelims 2024 easy Modern History Open full page

With reference to the Government of India Act, 1935, consider the following statements:

1. It provided for the establishment of an All India Federation based on the union of the British Indian Provinces and Princely States.
2. Defence and Foreign Affairs were kept under the control of the federal legislature.

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 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?