A faction of the Trinamool Congress led by Ritabrata Banerjee has launched an internal rebellion against Chief Minister Mamata Banerjee in West Bengal.

The rift threatens the stability of the state government and the future of the ruling party. If a significant number of legislators defect, the administration could face a crisis of confidence in the legislative assembly.

The rebellion has escalated rapidly over the last two weeks [1]. Ritabrata Banerjee, a rebel MLA, has been recognized by the assembly speaker as the leader of the opposition [2]. This designation marks a significant shift in the assembly's power dynamics, as it formally acknowledges a divide within the party that previously held a dominant position.

Banerjee claims to have the backing of a substantial portion of the party's legislative wing. Reports indicate he has support from more than 58 TMC MLAs [3], while other estimates place the strength of the rebel group at around 60 [4]. This internal split stems from growing dissent regarding leadership, and control over the party's direction [1].

Mamata Banerjee is reportedly considering legal action to challenge the speaker's decision to recognize the rebel leader as the opposition head [2]. The chief minister has faced one of the biggest challenges to her authority since taking office as the party descended into open revolt [1].

The conflict highlights a struggle for control within the Trinamool Congress, as legislators challenge the centralized authority of the party leadership. The outcome of the potential legal battle and the final count of loyalists will determine if the current government can maintain its majority in the West Bengal Legislative Assembly.

The party descended into open revolt in less than two weeks.

The recognition of a rebel leader as the leader of the opposition suggests a formal fracture in the Trinamool Congress's legislative dominance. If the rebel faction maintains a strength of roughly 60 MLAs, the government's ability to pass legislation and maintain a stable majority is severely compromised, potentially shifting the political landscape of West Bengal toward a more fragmented or contested governance model.