Section 181(2) in The Mizoram Autonomous District Council (Constitution and Conduct of Business of the District Councils) Rules, 1974
(2)The petitioner may, if he so desires in addition to calling in question the election of a returned candidate, claim a declaration that he himself has been duly elected, but such a declaration shall only be claimed on one or other of the following grounds:(a)that the fact that the petitioner received a majority of the valid votes; or(b)that, but for votes obtained for the returned candidate by corrupt or illegal practices the petitioner would have obtained a majority of the valid votes.