India, June 11 -- Trinamool Congress MP Sushmita Dev on Wednesday resigned from the party and the Rajya Sabha, dealing a fresh blow to the Mamata Banerjee-led party, which is facing an internal storm after its defeat in the West Bengal assembly polls.

Dev's resignation as MP has been accepted by Rajya Sabha Chairman C P Radhakrishnan.

"Sushmita Dev, an elected member of the Council of States (Rajya Sabha), representing the state of West Bengal, resigned her seat in the Rajya Sabha and her resignation has been accepted by the Chairman, Rajya Sabha, with effect from June 10, 2026," a notification from the Rajya Sabha Secretariat said.

Sources said Dev, who earlier quit the Congress 2021 to join the TMC, is likely to join the BJP as she m...