Mr. Usman Jibrin, a former chief of Naval Staff was not cleared in the just concluded All Progressives Congress (APC) primaries.
Jibrin is the closest rival to Mr. Yahaya Bello, the Kogi state Governor.
Mr. Mustapha Audu, son of the late Abubakar Audu was among those that were not cleared.
Audu said he was disqualified as a result of his birth certificate missing in his file.
A situation he said someone stole his birth certificate from his file.
He has since accused APC of conducting primaries full of irregularities.
Out of 16 aspirants, only four were cleared.
The four cleared are, Mr. Yahaya Bello-the incumbent Governor, Abubakar Bashir, Hassan Abdullahi, Ekele Blessing.