A major political battle has reached India’s highest court after senior Trinamool Congress (TMC) leader Abhishek Banerjee filed a petition in the Supreme Court seeking the disqualification of 20 former TMC Members of Parliament (MPs) who left the party and joined a rival political group.

The petition questions the delay in acting on earlier disqualification requests and names Lok Sabha Speaker Om Birla, the Lok Sabha Secretariat, and the rebel lawmakers as respondents.

Why the Case Matters

According to the filing, the lawmakers allegedly abandoned TMC and joined the Nationalist Citizens Party of India (NCPI), a new political formation that later expressed support for the ruling NDA alliance.

Banerjee argues that despite repeated representations under India’s anti-defection provisions, no final decision has been taken on their parliamentary status.

The petition claims that requests for action were submitted over several weeks, including formal communications and meetings with parliamentary authorities.

Seat Rearrangement Sparks Fresh Controversy

The court filing also raises concerns over reported changes in parliamentary seating arrangements.

According to the petition, some of the rebel MPs were allegedly given seating positions reflecting their new political alignment before any official ruling on their status was issued.

TMC leaders argue that the lawmakers have publicly identified themselves with a different party while continuing to participate in Parliament under their previous affiliation, creating what they describe as a constitutional and procedural contradiction.

Political Fallout After West Bengal Election Shock

The legal battle comes amid a dramatic political realignment following the 2026 West Bengal Assembly election.

After suffering a major electoral setback, TMC reportedly witnessed internal divisions that eventually led to a large group of parliamentarians breaking ranks and forming or joining a separate political bloc.

The departure of 20 MPs represented one of the biggest splits in the party’s recent history and significantly altered the balance of power within the opposition camp.

What Happens Next?

Legal observers expect the Supreme Court to consider whether parliamentary authorities acted within a reasonable timeframe in handling the disqualification petitions.

The case could become a significant test of India’s anti-defection framework and may have wider implications for party discipline, parliamentary procedure, and coalition politics.

If the court intervenes, the outcome could affect the parliamentary future of all 20 lawmakers and potentially reshape opposition politics ahead of future national contests