Overview
The Supreme Court agreed on 21 July 2026 to hear an urgent petition filed by the Shiv Sena (Uddhav Bal Thackeray) (UBT) party. The petition challenges the decision of Lok Sabha Speaker Om Birla to approve the "merger" of six UBT MPs with the rival Shiv Sena faction headed by Maharashtra Deputy Chief Minister Eknath Shinde ahead of the Monsoon session.
Key Developments
- UBT argues that the six MPs merged without a formal merger of the original political party, violating the anti‑defection law.
- Senior advocate Devadatt Kamat highlighted that such unilateral "mergers" are becoming a loophole for horse‑trading.
- The Court will also consider a related petition by Congress leader Girish Chodankar on the constitutionality of legislature‑party mergers.
Important Facts on the Anti‑Defection Law
Paragraph 2(1)(a) of the Tenth Schedule disqualifies members who voluntarily give up party membership. Paragraph 4 specifies that a valid merger must:
- Be initiated by the original political party itself.
- Receive the support of at least two‑thirds of its legislators.
A 2023 Constitution Bench in Subhash Desai vs. Principal Secretary, Governor of Maharashtra clarified that the "legislature party" and the "original political party" are distinct concepts. The defence against disqualification applies only when the merger originates from the original party.
Exam Relevance
Understanding the nuances of the anti‑defection law is essential for GS‑2 (Polity). Candidates must know:
- How the law balances party discipline with legislators' freedom of speech.
- The procedural safeguards for a legitimate merger or split.
- The role of the Speaker of Lok Sabha in applying the law.
Way Forward
The Supreme Court’s ruling will likely clarify whether a unilateral declaration by individual MPs can constitute a "merger" under the Tenth Schedule. A stricter interpretation could curb horse‑trading and reinforce party stability, while a liberal view may expand legislators’ flexibility to switch allegiance. Aspirants should monitor the judgment for its impact on parliamentary ethics, party politics, and future legislative reforms.