 He represented the Munger constituency of Bihar and is a member of the Rashtriya Janata Dal (RJD) political party.He won the 2014 Indian general election from Banka Constituency and in 2019 lost to Giridhari Yadav from same constituency 

Jai Prakash Narayan Yadav was born in Barhat, Jamui district, in Bihar state.His late father's name is Akhileshwar Prasad Yadav and his mother's name is Smt.