Tenth Schedule Explained: Party Merger Rules Under the Anti-Defection Law
Anti-Defection Law: The Tenth Schedule Explained article offers a comprehensive perspective on the anti-defection provisions of the Constitution and the regulations related to the amalgamation of political parties in India. The Tenth Schedule, added to the Constitution by the 52nd Constitutional Amendment Act, 1985, has been included to prevent political defections and provide stability in the elected governments.
Over the years, the anti-defection law has played a crucial role in maintaining party discipline. But it has also stimulated discussions of the effect on legislative independence and presiding officers’ powers. The use of the provisions concerning mergers of parties should be understood, since they are frequently key to a government’s success at both the federal and state levels.
Important Points To Remember About Tenth Schedule
- The Tenth Schedule was inserted in the Constitution by the 52nd Constitutional Amendment Act, 1985.
- It has provisions about the anti-defection law.
- The purpose of the law is to stop elected representatives from switching parties for personal or political gain.
- Disqualification cases are decided by the Speaker or Chairman.
- A merger is valid when two-thirds of a party in the legislature agree.
- In 2003, the exemption for splits was removed by the 91st Constitutional Amendment Act.
- The Speaker’s decision is, however, subject to judicial review.
Tenth Schedule Explained: Overview Table
| Particulars | Details |
| Constitutional Provision | Tenth Schedule |
| Added By | 52nd Constitutional Amendment Act, 1985 |
| Popular Name | Anti-Defection Law |
| Amendment Strengthening the Law | 91st Constitutional Amendment Act, 2003 |
| Objective | Prevent political defections |
| Decision-Making Authority | Speaker of Lok Sabha/Legislative Assembly or Chairman of Rajya Sabha/Legislative Council |
| Merger Requirement | Support of at least two-thirds of legislators |
| Judicial Review | Permitted by courts |
| Applies To | Members of Parliament and State Legislatures |
What Is the Tenth Schedule?
The section and Tenth Schedule Explained starts from the Constitutional foundation.
The Constitution was amended to insert the Tenth Schedule in a bid to deter legislators from changing political parties after elections. Constant floor crossing had caused political regimes to wobble and citizens to lose faith in democracy.
Final Version: The anti-defection law is a detailed provision that applies to Members of Parliament (MPs) and Members of State Legislatures (MLAs and MLCs).
The legislators under this act will be disqualified from their membership if they leave the membership of their political party or vote contrary to the vote cast by him/her against a party whip without permission
Why Was the Anti-Defection Law Introduced?
- Before 1985, India experienced regular political desertion, disturbing vote-based solidarity.
- Personal gain also means ministerial posts and power: individual legislators frequently switched allegiance.
- This trend of constant party switching was summed up in the phrase “Aaya Ram Gaya Ram.”
- These fickle choices induced shaky governments and the persistent crumbling of country assemblies.
- Opportunistic coalition-building trumped loyalty to any politics
- In response to this, Parliament enacted the Tenth Schedule (Anti-Defection Law) by the 52nd Constitutional Amendment Act (1985).
- It was meant to help foster political stability and strengthen party discipline.
- One of the main things that law prohibits is corruption, horse-trading and immoral political bargaining.
- It preserves the mandate entrusted to it by voters and sustains a parliamentary democracy.
PYQs Table: Tenth Schedule (Anti-Defection Law)
| Year | Exam | Question | Options | Answer |
| 2023 | UPSC Prelims | Who decides disqualification under the Tenth Schedule? | (a) President (b) PM (c) Speaker/Chairman (d) EC | (c) Speaker/Chairman |
| 2022 | UPSC Prelims | Valid merger condition under the Tenth Schedule? | (a) 1/2 members (b) 1/3 members (c) 2/3 members (d) Unanimous | (c) 2/3 members |
| 2021 | UPSC Prelims | Speaker’s decision on disqualification can be: | (a) Final (b) Challenged in SC (c) Approved by President (d) EC review | (b) Challenged in SC |
| 2020 | UPSC Prelims | Main objective of Anti-Defection Law? | (a) Coalition growth (b) Independence (c) Stability & discipline (d) More parties | (c) Stability & discipline |
| 2019 | UPSC Prelims | Which amendment removed the split provision? | (a) 42nd (b) 52nd (c) 91st (d) 97th | (c) 91st Amendment |
| 2018 | State PCS | Disqualification happens when? | (a) Follows whip (b) Votes with party (c) Voluntarily gives up party (d) Takes permission | (c) Voluntarily gives up party |

India and Slovakia Elevate Ties to Comprehensive Partnership
Landmark Judgments on the Anti-Defection Law (Tenth Schedule)
Kihoto Hollohan v. Zachillhu (1992)
The Tenth Schedule has also been held to be constitutionally valid by the Supreme Court, and the need for the Anti-Defection Law as a check against political perversion is imperative for maintaining stability in India and party discipline. The Court also clarified that the Speaker has no final authority over it and is subject to judicial review by the High Courts and the Supreme Court in case of mala-fide, bias or violation of procedure.
Swami Prasad Maurya v. Rajendra Singh Rana (2007)
In its judgment, the Supreme Court stated that a Speaker acts as a quasi-judicial authority under the Tenth Schedule, which should not be influenced by pre-determined conclusions and work with complete neutrality. The Court held that matters relating to defection should be determined only by reference to constitutional principles to resist political pressure and ensure neutrality between the parties.
Keisham Meghachandra Singh v. Speaker, Manipur Legislative Assembly (2020)
The Supreme Court tackled the issue of procrastination in disqualification cases. The move pointed out that this kind of delay defeats the very purpose for which an Anti-Defection Law has been enacted. For this reason, Speakers are to decide on defection petitions within a reasonably rational time-frame (preferably three months).
Conclusion: Tenth Schedule Anti-Defection Law Explained
The Anti-Defection Law was incorporated in the national constitution under the Tenth Schedule for not only political stability but also due to ethical concerns of compartmentalising vote banks. It deters self-interested behaviour and frees up representatives to toe the party line. The law enforces the will of the voters, ensuring that legislators remain true to their political party or risk disqualification. In the long run, it has been better defined by the judgment of the Supreme Court through judicial review, impartiality of the Speaker and decisions in a timely manner. In a nutshell, the Tenth Schedule performs an important function in ensuring stability and integrity of India’s parliamentary system.









