Kolkata, Aug 16, 2021, IBNS
Dev joined the powerful regional satrap in presence of TMC national general secretary Abhishek Banerjee and Rajya Sabha MP Derek O'Brien.
Dev Sunday sent her resignation letter to Congress interim president Sonia Gandhi offering no reason behind her decision.
She might become the TMC's face in Assam where Mamata Banerjee's party is aiming to keep its footprint.
Dev, the daughter of veteran Bengali Congress leader Santosh Mohan Dev, was an MLA from Silchar between 2011 and 2014 and she was elected to the Lok Sabha in 2014.