General Hussain Muhammad Ershad, Chief of Army Staff, transferred Major-General Manzoor to a non-combatant post in Dhaka as Commandant of the Defence Services Command and Staff College. Manzoor was the General Officer Commanding (GOC) of Chittagong, and freedom fighters placed under his command were given the highest posts. Once the transfer order was sent to Manzoor, he launched a coup on the morning of 30 May, and ordered the killing of President Ziaur Rahman at Chittagong Circuit House.
General Hussain Muhammad Ershad transferred Major-General Manzoor from combat duties to a non-combatant role as Commandant of the Defence Services Command and Staff College in Dhaka.  Manzoor was previously the GOC of Chittagong, and freedom fighters under his command were given prominent positions. After receiving the transfer order, Manzoor staged a coup on May 30th, killing President Ziaur Rahman at the Chittagong Circuit House.