1977SURENDRA JHA SUMANJNPJanata PartyMargin2,12,00250.8%Winner votes3,06,85773.6%ReservationGEN#CandidateVotesShareTurnout66.4%Votes cast4,22,293Electors6,35,811
1980HARI NATH MISHRAINC(I)Congress (I)Margin58,20112.4%Winner votes2,25,58448.2%ReservationGEN#CandidateVotesShareTurnout64.7%Votes cast4,73,415Electors7,32,217