Mr Manu holds a Bachelor of Science Degree in Accounting (First Class Honours) from Ahmadu Bello University Zaria (1978) and a Master of Science Degree in Accounting and Finance from the London School of Economics, United Kingdom (1982). 

Mr Manu started his career in 1979 at Arthur Andersen & Co and subsequently served in several other organizations including the Bank of the North Limited; New Nigeria Development Company Limited; International Merchant Bank PLC; and the Nigeria Deposit Insurance Corporation. Between 2001 and 2004 Mr Manu served as Executive Chairman, Federal Inland Revenue Services. In May 2004, he was appointed Executive Director, Operations (Up-country and Special Products), Union Bank of Nigeria PLC having previously served in the Bank as Executive Director, Information Technology and Services between April 1999 and 2001. Mr Manu is currently Chairman and Chief Executive Officer, Sicom Capital Services Limited.