The former Member of Lok Sabha has specified no reason for her resignation and changed her Twitter bio.
Congress leader Sushmita Dev has resigned from her party.
The former Congress Women's wing chief has sent a letter to Sonia Gandhi announcing her resignation.
Though Sushmita Dev didn't mention any reason in the letter, she has thanked Sonia Gandhi, party leaders and workers and reminisced about her three long decade journey with the party.
After resigning from the Congress party, she has changed her Twitter bio to a Former Member of the Indian National Congress and All India Mahila Congress.
Congress leader Kapil Sibal has confirmed Sushmita's exit through his Twitter handle.
Sushmita Dev is the daughter of Santosh Mohan Dev, a seven-time parliamentarian from the Assam state.