Tuesday, Adamu was at the Nnamdi Azikiwe Airport to receive President Buhari who returned to Abuja after a four-day trip to his hometown Daura.
It was learnt that the IG was told of his fate after President Buhari’s arrival.
A top source said: “The IGP has been asked by the President to handover.
“He may likely handover to the most senior deputy inspector-general of Police. I am aware Adamu was yesterday putting finishing touches to his handover note.”
There were speculations on Tuesday that AIG Zanna Ibrahim might be appointed IGP.
It was learnt that there was jubilation at the Nigerian Police Academy, Wudil, Kano State, Tuesday by some officials of the college.
“He is an egghead, we have been jubilating since we heard of the likely choice.
Attempts to speak with Zanna on Tuesday were unsuccessful.
The Special Adviser on Media and Publicity to the President, Mr. Femi Adesina, simply said: “I don’t have any information yet on that (new IGP),” when contacted.