Twenty rebel Trinamool Congress (TMC) Lok Sabha MPs announced a merger with the Nationalist Citizens Party of India (NCPI) on June 15, 2024 [1, 3].

The move represents a significant blow to the TMC's legislative strength, as the defecting group constitutes more than two-thirds of the party's Lok Sabha members [2]. This shift potentially alters the balance of power in the lower house by strengthening the ruling National Democratic Alliance (NDA).

Led by Kakoli Ghosh Dastidar, the group of 20 MPs [1] met with Lok Sabha Speaker Om Birla in New Delhi to formalize their transition. During the meeting, the rebels requested separate seating arrangements within the Parliament building to distinguish themselves from their former party [1].

"We have decided to merge with the Nationalist Citizens Party of India and will support the NDA under the leadership of the Prime Minister," Dastidar said [4].

Speaker Om Birla said he would consider the request for separate seating as per parliamentary rules [5].

Internal rifts within the TMC and a desire for political leverage are cited as the primary drivers behind the split [6, 7]. The rebels are aligning themselves with the NDA to secure a more influential position within the current political landscape, a move some observers describe as a strategic escape route from internal party conflicts [8].

The merger follows a period of escalating tension within the West Bengal-based party, where internal disputes have increasingly fragmented the leadership's cohesion [7].

“"We have decided to merge with the Nationalist Citizens Party of India and will support the NDA."”

The defection of a majority of the TMC's Lok Sabha contingent to a smaller party like the NCPI is likely a tactical maneuver to avoid disqualification under anti-defection laws, which typically require a two-thirds split to merge without penalty. By aligning with the NDA, these MPs are shifting the parliamentary arithmetic in favor of the ruling coalition while fundamentally weakening the TMC's influence at the federal level.