Lalvenhima Hmar had contested from the constituency in the 2008 assembly polls and lost to Chawngtinthanga of the Congress by a margin of 543 votes.
Chawngtinthanga secured 4,924 votes while Hmar secured 4,381 votes out of the 13,207 votes polled with seven candidates in the fray.
The then MNF candidate J C Chhuanliana managed to bag 3,352 votes and stood third in the contest.
Hmar contested the 2008 elections as Mizoram People's Conference (MPC) candidate and later joined People's Conference (PC) party, the breakaway group of MPC which merged with MNF last year.
With the announcement of candidate by the MNF, all the major political parties in the state, excepting the ruling Congress, have announced their official nominees for the coming by-poll.