First instance body dealing with electoral disputes

The Representation of the People Act 1968, 45.45 Election petition and security for costs (1) (a)Subject to paragraph (b), a petition (in this Act referred to as an election petition) complaining of an undue election of a member to service in a council on the ground that ? (i) the person whose election is questioned was not qualified or was disqualified at the time of the election; or (ii) the election was avoided by reason of bribery, treating, undue influence, illegal practice, irregularity, or any reason, may be presented to a Judge in Chambers by ? (A) any person who voted or had the right to vote at the election to which the petition relates; (B) any person who claims to have had a right to be returned or elected at the election to which the petition relates; (C) any person who alleges he was a candidate at the election to which the petition relates. (b)Nothing in this Act shall authorise the presentation of an election petition on the ground that a candidate other than the person whose election is questioned was not qualified or was disqualified for election.http://aceproject.org/ero-en/regions/africa/MU/mauritius-representation-of-people-act-1958/at_download/file

In the event of electoral disputes, election petitions (challenges against the National Assembly election result) are heard by a court with at least two judges sitting on the bench. Election petitions must be submitted to the courts within 21 days after the date of the return of results.