Osmani did not support the 15 August 1975 assassinations , and did not tolerate undue criticism of Sheikh Mujibur Rahman . He accepted a post as defense advisor ( the equivalent of a cabinet minister ) to Khondaker Mostaq Ahmad , who took over as president after the 15 August coup and may have been involved . Osmani , who ignored advice to avoid the Mushtaq government , was appointed to the post after Ziaur Rahman was appointed Army Chief of Staff on 24 August 1975 and Khalilur Rahman became Chief of Staff in the Defense Ministry . Although it was a cabinet post , Osmani did not draw a salary for his service . He visited several army formations , stressing the need for discipline and morale , and may have hoped to prevent further bloodshed with his influence on the armed forces . As defense advisor , he did not oppose the promotion of the 15 August coup leaders or the reinstatement of retired army officers involved in the coup . The coup leaders had installed themselves in Bangabhaban , disregarding the army chain of command , and Osmani accepted the situation . He tried to implement the decision to disband the Jatya Rakshi Bahini , placing its members in police and '' anser '' organizations , before Ziaur Rahman received approval to integrate Rakshi Bahini formations into the army in October 1975 . The coup leaders maintained control of the 1st Bengal Lancer and 2nd Field Artillery units ( involved in the 15 August coup ) and deployed outside the army chain of command . Their actions , demonstrating the weakness of the chain of command , created a '' de facto '' parallel command structure
15 August 1975 assassinations
Assassination of Sheikh Mujibur Rahman
M. A. G. Osmani