AAP Rajya Sabha Defection: Constitutional Implications of the Tenth Schedule
Political Shift: Seven AAP Rajya Sabha MPs Join BJP
In a major political development in April 2026, seven Rajya Sabha Members of Parliament (MPs) from the Aam Aadmi Party (AAP) defected to the Bharatiya Janata Party (BJP). This group represents over two-thirds of the party's strength in the Upper House. While the defecting members claim legitimacy based on their numbers, AAP has labeled the move unconstitutional and initiated disqualification proceedings.
The Legal Debate: Split vs. Merger
The core of the dispute rests on the Tenth Schedule of the Indian Constitution. Key legal points include:
- Elimination of 'Split': Following the 91st Amendment (2003), the provision recognizing a 'split' (where 1/3rd of members leave) was removed.
- Merger Requirement: Currently, the law only recognizes a merger if at least two-thirds of the members of a legislative party agree to join another political party.
- AAP's Stance: The party argues that since there is no official merger of the organizational wing of AAP with the BJP, the individual MPs should be disqualified for voluntarily giving up membership.
Role of the Presiding Officer
The authority to decide on the disqualification of a Rajya Sabha member lies solely with the Chairman of the Rajya Sabha (who is the Vice-President of India, currently Jagdeep Dhankhar). While the Chairman has the power to decide, the Supreme Court has previously ruled (in the Kihoto Hollohan case) that such decisions are subject to judicial review on grounds of malafides or perversity.
History of the Anti-Defection Law
The Anti-Defection Law was inserted into the Constitution via the 52nd Amendment Act, 1985, to prevent political instability caused by frequent floor-crossing. A member can be disqualified if they:
- Voluntarily give up their party membership.
- Vote or abstain from voting contrary to the Party Whip without prior permission.
For TNPSC and Civil Services aspirants, this development is a critical case study under "Indian Polity," specifically regarding the evolution of the Tenth Schedule and the powers of the Presiding Officer.
