Supreme Court seeks Centre's reply on Kapil Sibal's plea on interpretation of anti-defection law
The Supreme Court has sought the Union government's response to a petition challenging the prevailing interpretation of Paragraph 4 (the merger provision) of the Tenth Schedule to the Constitution
The petition contends that the current interpretation allows splinter groups of legislators to escape disqualification under the anti-defection law by routing a defection through a party "merger," even where this changes which side commands a majority in the House
The Supreme Court orally remarked that there are "enormous issues" with the present framework of the anti-defection law and agreed to examine the matter further
The case has been listed for further hearing after the Centre files its reply
The Tenth Schedule — Origin and Core Disqualification Grounds
The Tenth Schedule, popularly called the "anti-defection law," was inserted into the Constitution by the 52nd Amendment Act, 1985 to curb political defections that were destabilising governments. Paragraph 2 lays down the grounds for disqualification of a member of a House belonging to a political party: voluntarily giving up membership of the party, or voting/abstaining contrary to a party whip without prior permission (and without condonation within 15 days).
Key Details
- Applies to members of both Parliament and State Legislatures
- The Speaker or Chairman of the House decides disqualification petitions under Paragraph 6, acting in a quasi-judicial capacity
- The stated objective was to check "the evil of political defections" motivated by lure of office or other similar considerations rather than genuine ideological difference
The petition's grievance concerns how the exceptions to this disqualification regime — specifically the merger exception — are interpreted, which determines whether the anti-defection law achieves its original stabilising purpose.
Paragraph 4 — The Merger Exception and the 91st Amendment, 2003
Paragraph 4 of the Tenth Schedule protects members from disqualification if their original political party merges with another party, provided at least two-thirds of the members of the legislature party have agreed to the merger. This is sometimes called the "Twin Test": (i) an actual merger of the original party with another party, and (ii) at least two-thirds of the legislature party's members consenting to and acting upon that merger.
Key Details
- Before the 91st Constitutional Amendment Act, 2003, Paragraph 3 additionally provided a "split" exception — if at least one-third of a legislature party broke away, they were exempt from disqualification; the 91st Amendment deleted this split exception entirely
- Only the two-thirds merger exception under Paragraph 4 survives today, made deliberately more stringent than the deleted one-third split threshold
- The interpretive question raised in the current petition is whether two-thirds of a legislature party can itself trigger a valid "merger" claim without an underlying, genuine merger of the political parties at the organisational level
The petition's core objection — that legislators can use the merger route to flip which side holds a majority — turns on how strictly courts read the Twin Test under Paragraph 4, especially the requirement of a genuine party-level merger as opposed to a purely numerical legislature-level manoeuvre.
Kihoto Hollohan v. Zachillhu (1992) — Validity of the Tenth Schedule and Judicial Review
A five-judge Constitution Bench of the Supreme Court, by a 3:2 majority, upheld the constitutional validity of the Tenth Schedule inserted by the 52nd Amendment. It simultaneously struck down Paragraph 7, which had sought to bar judicial review of the Speaker's or Chairman's decisions on disqualification.
Key Details
- The Court held that the Speaker/Chairman, while deciding disqualification petitions under the Tenth Schedule, functions as a tribunal exercising judicial power, making such decisions subject to judicial review on limited grounds (mala fides, perversity, violation of constitutional mandate, or procedural irregularity)
- Paragraph 7's attempt to oust judicial review was struck down as it required ratification under the proviso to Article 368(2) (since it affected the jurisdiction of courts), which had not been obtained
- This case remains the foundational precedent for all subsequent anti-defection litigation, including disputes over the merger exception
Because Tenth Schedule decisions are judicially reviewable per Kihoto Hollohan, the Supreme Court is competent to examine and potentially recalibrate how the merger exception under Paragraph 4 has been interpreted and applied.
Composition and Adjudication Mechanism Under the Tenth Schedule
Paragraph 6 vests the power to decide disqualification questions in the Chairman or Speaker of the House concerned, whose decision is final subject to judicial review as clarified in Kihoto Hollohan. This differs from ordinary judicial adjudication in that the first-instance decision-maker is a political office-holder rather than a court.
Key Details
- The Speaker's role under the Tenth Schedule is distinct from the Speaker's removal process under Article 94, which requires a resolution passed by an "effective majority" (majority of all then members) of the Lok Sabha
- Delay in the Speaker/Chairman deciding disqualification petitions has been repeatedly flagged by the Supreme Court in separate cases as undermining the law's effectiveness
- Any reinterpretation of Paragraph 4 by the Supreme Court would bind the Speaker/Chairman's future adjudication of merger-based defence to disqualification
The petition effectively asks the Supreme Court, rather than individual Speakers deciding case by case, to settle a uniform interpretive standard for when a merger claim under Paragraph 4 should defeat a disqualification petition.
- Tenth Schedule inserted by: 52nd Constitutional Amendment Act, 1985
- Split exception (one-third) deleted by: 91st Constitutional Amendment Act, 2003
- Surviving exception: Paragraph 4 merger, requiring two-thirds of the legislature party's consent
- Leading precedent on validity and judicial review: Kihoto Hollohan v. Zachillhu, 1992 Supp (2) SCC 651 (decided February 18, 1992, 3:2 majority)
- Adjudicating authority for disqualification petitions: Speaker/Chairman under Paragraph 6, subject to judicial review
- Related but distinct procedure: Removal of Speaker under Article 94 (effective majority of the Lok Sabha)