Samajwadi Party supremo Mulayam Singh Yadav on Monday filed his nomination papers from the Mainpuri seat for the 2019 Lok Sabha polls.
He represented Mainpuri in the Lok Sabha in 1996, 2004 and 2009. In the 2014 Lok Sabha polls, Mulayam Yadav contested from Azamgarh and Mainpuri and won both.
In Mainpuri, his victory margin was a massive 3.64 lakh votes.