Congress vice president Rahul Gandhi, who faces a triangular contest from the family pocket borough of Amethi, filed nomination papers from Amethi on Saturday following a massive roadshow.br br Priyanka Vadra and her husband Robert Vadra accompanied Rahul Gandhi during his 40km-long roadshow from Gauriganj to Amethi collectorate. Congress president Sonia Gandhi was by her son's side when he filed the nomination papers.