Gambari, from Kwara State was the Minister of External Affairs between 1984 and 1985.
A professor of repute and a global citizen, the 78 year old replaces former Chief of Staff, late Abba Kyari.
Prof. Gambari served meritoriously in the United Nations as Under Secretary-General and Special Adviser to the Secretary-General on Africa between 1999 and 2005.
He is a global citizen whose scholarly works are also recognised both home and abroad.
He is the Pioneer Chancellor of the Kwara State University.