Candidate of the Convention People's Party (CPP) in the Kumbungu by-election held on Tuesday, Moses Amadu Yahaya, emerged victorious.
The by-election was instanced by the abdication of the seat by Alhaji Mohammed Mumuni, who was appointed earlier this year to serve as the Secretary-General of the African, Caribbean and Pacific (ACP) Group of States.
Yahaya, 61, polled 13,029 votes to beat favourite Alhaji Imoro Yakubu Kakpagu of the National Democratic Congress (NDC).
Alhaji Kakpagu polled 11,896 votes out of a total of 39,478 registered voters in the Constituency.
A third candidate, Ahmed Nasiru Mohammed, represented the People's Progressive Party (PPP). He polled 228 votes to come third.
Rejected ballots numbered 634.
Voter turn-out was 55 per cent.