Congress president Sonia Gandhi will file her nomination papers for the Rae Bareli Lok Sabha seat today.
Sonia Gandhi, who is seeking re-election from the seat, will be accompanied by party vice president and her son, Rahul Gandhi when she arrives here for filing her nomination papers.
Her daughter and in-charge of the constituency Priyanka and her husband Robert Vadra are also expected to join her, according to Congress sources.
The main opposition party BJP has fielded noted Supreme Court lawyer Ajay Aggarwal against the Congress president from the Rae Bareli seat.