Maheri was graduated from LMC Jamshoro, trained as a medical doctor. but became involved in politics while a student activist with the Jeay Sindh Qaumi Mahaz movement of G. M. Syed. At various times, he has spent 13 years imprisoned in Pakistani jails. and ten stipes in the time of General Zia ul Haq Martial Law. In 1996, the Deputy Secretary General of the World Sindhi Congress demanded Maheri's release, calling his imprisonment false. Maheri joined Dr. Qadir Magsi's Sindh Taraqi Pasand Party. After disagreements, he resigned from the party.