It also promised to give adequate protection to anyone who provide useful information, adding that such tip-off would be treated with utmost confidentiality.
Mr. Inusa, a colonel, was whisked away in his Mercedes-Benz car by gunmen around Kamazo, along Kaduna Refinery Road, in Chikun local government area of Kaduna State.
As part of efforts to successfully rescue the senior officer, a spokesperson for the First Division of the Nigerian Army, Usman Abdul, a colonel, announced the cash-for-information offer to journalists on Monday morning.
The Army had earlier promised a N500,000 cash reward for information, but on Monday raised the cash reward to N1million.
Mr. Abdul had said in a statement on Sunday that the senior officer was abducted on Saturday night.
According to the statement, “the abductors dropped off Colonel Inusa’s wife and left with him in his car. The car headed towards Abuja.”