Senator Zarewa is a Chartered Accountant, Stockbroker, and holds an MBA from Ado Bayero University, Kano. He is also a fellow of the Nigerian Institute of Management. He started his working career with Kano State Housing Corporation as an accountant before joining Total Nigeria Plc where he rose from Accountant to Administrative Manager (Northern Area), a position he held for years, until he retired in 1993 as a Corporate Strategy Manager to join politics.
He is an entrepreneur with extensive business interests; this is evident in the establishment of several companies like Maindiva ventures Limited, - a commodities brokerage firm, Aciyima Investment Limited, - a finance company, Nalili International Limited – a commodity import and export company and Nalili Farms Limited.
Senator Zarewa was appointed as a senator of the Federal Republic of Nigeria in the botched 3rd republic in 1993 and has been actively involved in Kano State and national politics since then. Besides being the Chairman of Fortress Capital Limited, he is also presently the Chairman of Rahama Cleaning Services Nig. Limited, and a Director at Union Trustees Limited.
He has attended several courses in Management, both home and abroad, and is married with children.