Mr Diri is the successor of Henry Dickson whose tenure ended Friday night.
Since the return to democracy in 1999, the Igbo tribe of the South-East region has not produced a son who has manned the exalted office in the country.
The opposition party stated this after losing at the State Governorship Election Tribunal, Thursday.
Herdsmen are usually accused as arrowheads of criminal activities that has recently bedeviled the nation.
The election is scheduled to hold on Saturday.
The attack is coming weeks after religious clerics were murdered in the state by suspected herdsmen.
The declaration is in compliance with the directive of the Supreme Court.
"We want to position Gregory University as a competing university and to be the number one in this country." The above statement by the Chancellor...
The tribunal gave its verdict on Thursday, dismissing the petition brought before it by the opposing Nsima Ekere, and his party, the All Progressive Congress (APC) in the state.
This move has been misinterpreted with mostly Nigerians from the southern part of the nation accusing the government on embarking on land grabbing mission for herders alleged as arrowheads of insecurity nationwide.