Sushmita Dev resigned from the Trinamool Congress party and her Rajya Sabha seat on June 10, 2026 [1].

The departure of a high-profile legislator from the TMC suggests internal friction or a strategic shift in the party's regional influence. Such resignations often signal broader political realignments within the Indian parliamentary system.

Dev made the announcement in New Delhi, where she said that she decided to step down for personal and political reasons [1]. The move involves both her membership in the party and her position as a Member of Parliament in the upper house [2].

"I have decided to resign for personal and political reasons," Dev said [2].

Following her resignation, Dev met with Assam Chief Minister Himanta Biswa Sarma on June 10, 2026 [1]. This meeting occurred shortly after she vacated her seat and severed ties with the TMC.

Dev addressed the nature of her political transition during the process. "Everyone has the right to change in thought in our country," she said [1].

The TMC has faced various challenges in maintaining its legislative numbers, and this exit represents another loss for the party's representation in the Rajya Sabha [2].

"I have decided to resign for personal and political reasons."

The resignation of Sushmita Dev and her immediate meeting with Assam Chief Minister Himanta Biswa Sarma suggests a potential pivot toward a different political coalition. By resigning from both the party and her seat, Dev has cleared the legal and political path to join another organization without facing the disqualification hurdles typically associated with party-switching in India.