Sushmita Dev, a Rajya Sabha MP for the Trinamool Congress (TMC), has resigned from all party posts and quit the organization this week [1].

The departure signals a deepening political crisis for party leader Mamata Banerjee as internal dissent grows within the ranks of the West Bengal-based party [3].

Dev is the second Rajya Sabha MP from the Trinamool Congress to resign within a single week [2]. Her exit follows a pattern of increasing instability within the party's upper house representation, reflecting a broader trend of fragmentation among high-ranking members [2].

This wave of resignations is part of a larger internal rebellion. Reports indicate that the unrest involves 58 TMC MLAs [4]. The scale of this defiance suggests a systemic challenge to the current party leadership in Kolkata [3].

Dev's resignation comes as the party struggles to maintain cohesion among its legislative members. While the specific motivations for her individual departure were not detailed in the official announcements, the timing aligns with the broader rebellion involving the state legislators [3].

The loss of two Rajya Sabha members in seven days reduces the party's influence in the upper house of Parliament. This attrition occurs while the party faces a coordinated effort by members to challenge the internal status quo [1], [4].

“Sushmita Dev is the second Rajya Sabha MP from the Trinamool Congress to resign within a single week.”

The resignation of Sushmita Dev, coupled with the reported rebellion of 58 MLAs, indicates a significant erosion of Mamata Banerjee's control over the Trinamool Congress. The loss of Rajya Sabha members is particularly damaging as it weakens the party's leverage in national legislative affairs and suggests that the internal crisis has moved beyond local state politics into the federal sphere.