Sukhendu Sekhar Ray, a veteran Trinamool Congress (TMC) Rajya Sabha MP, resigned from the party and the Upper House on Monday [1].

The departure of a high-ranking lawmaker signals a potential fracture within the party's leadership in West Bengal. As a senior figure, Ray's exit may embolden other dissenting members who have grown critical of the current administration.

Ray announced his resignation in Kolkata on June 8, 2026 [1]. The move includes both his resignation from the TMC party and his seat in the Rajya Sabha [2].

Ray said growing dissent within the party was a primary driver for his decision [2]. He specifically pointed to criticisms regarding the 15-year rule of Mamata Banerjee [2].

This shake-up comes at a time of internal tension for the TMC. The party has faced increasing pressure to manage internal disputes while maintaining its grip on the state's political landscape, a challenge that Ray's departure brings to the forefront [2].

While the party has not yet issued a formal response to the resignation, the loss of a veteran MP from the Upper House reduces the TMC's legislative presence in New Delhi. The timing of the exit suggests a deeper ideological or strategic rift between the veteran leadership and the party's central command [2].

Sukhendu Sekhar Ray resigned from the party and the Upper House on Monday

The resignation of Sukhendu Sekhar Ray represents a significant blow to the Trinamool Congress's internal stability. By explicitly citing dissatisfaction with Mamata Banerjee's long-term governance, Ray has shifted internal party grievances into the public sphere. This could lead to a wider split within the party or a realignment of power in West Bengal's political landscape as other members weigh their loyalty against growing internal dissent.