Section 91: Grounds on which election may be questioned.

(1) An election may be questioned on the following grounds-
(a) that the person whose election was questioned was at the time of the election not qualified or was disqualified from being elected to the office of Governor or as a member of a Legislative House:
Provided that the power of the Chief Electoral Officer of the Federation or any officer delegated by him in that behalf as to the validity of nominations under paragraph 5 (3) of Schedule 5 to this Act shall not be ground for such election petition
(b) that the election was invalid by reason of corrupt practices or offences against this Act; or
(c) that the respondent was not duly elected by a majority of lawful votes at the election.
(2) An act or omission which is contrary to an instruction or direction of the Commission or of any officer appointed for the purpose of the election but which is not contrary to this Act shall not of itself be a ground upon which the election may be questioned :
Provided that nothing in paragraph (a) of subsection (1) of this section shall affect or invalidate any decision of the Independent National Electoral Commission or of the Transition to Civil Rule Tribunal that a person has been banned or disqualified pursuant to or under the Participation in Politics and Elections (Prohibition) Act, as amended.