Anti- Defection Law : ISC Explained

On April 24, 2026, Rajya Sabha MPs Raghav Chadha and Sandeep Pathak, along with five other colleagues, announced their departure from the Aam Aadmi Party (AAP) to merge with the Bharatiya Janata Party (BJP). This move has sparked significant legal debate regarding the Anti-Defection Law (Tenth Schedule of the Constitution), as the group claims protection from disqualification by meeting the two-thirds threshold required for a legal merger.

What is the Anti- Defection Law?

The Anti-Defection Law, contained in the Tenth Schedule of the Indian Constitution, was enacted in 1985 to curb the “evil of political defections” and ensure government stability. It punishes elected members (MPs and MLAs) for switching parties after being elected.

1. Grounds for Disqualification:

A member of the House can be disqualified under the following conditions:

- Voluntary Exit: If an elected member “voluntarily gives up” their membership of the political party they belong to. This can be inferred from their conduct (e.g., attending opposition rallies) even if they haven’t formally resigned.
- Defying the Whip: If a member votes or abstains from voting in the House contrary to the “whip” (direction) issued by their party, without prior permission or subsequent condonation within 15 days.
- Independent Members: If an independently elected member joins any political party after the election.
- Nominated Members: If a nominated member joins any political party after six months from the date they take their seat.

2. Legal Exceptions:

The law provides specific safeguards where disqualification does not apply:

- Merger: If at least two-thirds of the members of a legislative party agree to merge with another political party, neither those who join nor those who stay are disqualified. Note that the exception for a “split” (one-third members) was abolished in 2003.
- Presiding Officers: A member elected as Speaker or Chairman can voluntarily give up their party membership to maintain impartiality and rejoin later after demitting the post without facing disqualification.

3. Decision-Making & Authority:

The Arbiter: The final authority to decide on disqualification is the Presiding Officer (Speaker in Lok Sabha/Assemblies, Chairman in Rajya Sabha/Councils).
Judicial Review: While the law originally barred court interference, the Supreme Court in the landmark Kihoto Hollohan case (1992) ruled that the Presiding Officer’s decision is subject to judicial review by High Courts and the Supreme Court on grounds of bias or perversity.
Time Frame: The law specifies no deadline for the Speaker to decide, which has often led to significant delays. However, the Supreme Court (2020) ruled that such petitions should ideally be decided within three months.

4. Penalties Beyond Losing the Seat:

Under the 91st Amendment (2003), any member disqualified for defection is also barred from:

Being appointed as a Minister.
Holding any remunerative political post until the end of their original term or until they are re-elected, whichever is earlier.

The Case of Raghav Chadha and Sandeep Pathak

Chadha and Pathak led a bloc of seven out of AAP’s 10 Rajya Sabha MPs to join the BJP.

Numerical Strategy: By having 7 of 10 MPs (70%) move together, the group claims they have satisfied the two-thirds requirement (which would be 6.67, rounded to 7) to avoid losing their parliamentary seats.
The Controversy: Legal experts and AAP leaders argue that a merger requires two conditions: the original political party (the organisation itself) must merge, and two-thirds of the legislative party must agree. Critics note that since the AAP organisation did not merge with the BJP, the move might be considered illegal defection rather than a valid constitutional merger.
The Irony: Observers have pointed out that in 2022, Raghav Chadha himself proposed a private member’s bill to stiffen the anti-defection law by requiring a three-fourths majority for splits, which would have made his current move legally impossible.

List of MPs Involved:

The seven MPs who moved as a bloc to the BJP include:

Raghav Chadha (Punjab)
Sandeep Pathak (Punjab)
Ashok Mittal (Punjab)
Harbhajan Singh (Punjab)
Swati Maliwal (Delhi)
Rajinder Gupta (Punjab)
Vikram Sawhney (Punjab)

The final decision on their disqualification rests with the Chairman of the Rajya Sabha, C.P. Radhakrishnan, whose ruling will determine if this “strategic merger” holds up under constitutional scrutiny.

What is the Role of the Anti-Defection Law in this Particular Case?

In this particular case, the Anti-Defection Law acts as the primary legal battleground between the seven defecting MPs and the Aam Aadmi Party (AAP) leadership. The conflict centres on whether their move constitutes a legal merger or illegal defection.

The "Two-Thirds" Threshold:

The defecting group, led by Raghav Chadha and Sandeep Pathak, strategically timed their move to include exactly 7 out of AAP’s 10 Rajya Sabha MPs.

The Math: Because 7 is more than the two-thirds (6.67) required by the Tenth Schedule, they claim they are protected from disqualification.
Approval: On April 27, 2026, Rajya Sabha Chairman C.P. Radhakrishnan officially accepted the merger petition, formally recording them as BJP members in the House.

Legality vs. Legitimacy: The Core Disputes:

Despite the Chairman’s approval, the role of the law remains contested on several fronts:

Political Party vs. Legislature Party: AAP leaders, supported by experts like P.D.T. Achary, argue that the law requires a merger of the original political party (the entire AAP organisation), not just a faction of its legislators. They claim that since the AAP party structure remains intact and hasn’t merged with the BJP, the MPs have simply “voluntarily given up membership,” which should trigger disqualification.
Procedural Recognition: AAP has filed its own disqualification petition, arguing that the Tenth Schedule does not recognise “split” or “breakaway factions” in the Rajya Sabha, even with a two-thirds majority.
The Private Member’s Bill Irony: The law’s role is further highlighted by the fact that in 2022, Raghav Chadha introduced a bill to raise the threshold for such moves from two-thirds to three-fourths. Had his own proposed amendment been law, this move would have been illegal, as they would have needed 8 MPs instead of 7.

Current Legal Status:

While the Rajya Sabha Chairman has accepted the merger, the matter is likely to face judicial review in the Supreme Court. The court will have to decide if a “legislature party” can merge independently of its “political party”—a decision that could redefine the Anti-Defection Law for future generations.

What is the Way Forward?

The way forward in the AAP-BJP merger case involves a multi-pronged legal and constitutional battle, as the Aam Aadmi Party (AAP) challenges the Rajya Sabha Chairman’s recognition of the group led by Raghav Chadha and Sandeep Pathak.

1. Pending Disqualification Petitions:

Despite Chairman C.P. Radhakrishnan’s initial recognition of the merger on April 27, 2026, the case is far from closed:

Formal Challenges: AAP leader Sanjay Singh and Chief Whip N.D. Gupta has filed petitions seeking the disqualification of the defecting MPs under the Tenth Schedule.
Chairman’s Review: The Chairman must now act as a tribunal to formally adjudicate these petitions. He is required to hear both sides and determine if the constitutional requirements for a merger were genuinely met, rather than relying solely on the defectors’ claims.

2. Potential Judicial Review (Supreme Court):

Legal experts, including former Lok Sabha Secretary General P.D.T. Achary, anticipate that the final decision will likely be made by the Supreme Court. The court may be asked to clarify the “Twin Test” for mergers:

Political vs. Legislative Party: The Court will likely examine whether a group of legislators can “merge” independently if the original political party (the AAP organisation) continues to exist and opposes the move.
Legal Precedents: The AAP is expected to rely on the Subhash Desai vs. Maharashtra (2023) ruling, which emphasised that the legislative wing cannot be conflated with, or act entirely independently of, the parent political organisation.

3. Legislative and Reform Debates:

The case has reignited discussions on fixing loopholes in the Tenth Schedule:

Closing the Merger Loophole: There is growing demand from civil society groups like the Association for Democratic Reforms (ADR) to re-evaluate the two-thirds rule, which some argue incentivises mass defections rather than preventing them.
Independent Tribunals: Recommendations are being made to move the power of disqualification away from the Presiding Officer (who is often a political appointee) to an independent tribunal or the Election Commission to ensure neutrality.

Disclaimer: The above-written article contains facts and arguments analysed from platforms like The Hindu, Indian Express, and Manorama Magazine.

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