Complex sentence: M.A.G. Osmani was appointed an Adviser to the President in charge of Defence Affairs by Khondaker Mostaq Ahmed (then President) on 29 August 1975, but he resigned shortly after the murder of four national leaders inside the Dhaka Central Jail on 3 November.
Split into simpler sentences: M.A.G. Osmani was selected as an Adviser to the President, occupying the charge of Defence Affairs by Khondaker Mostaq Ahmed (then President) on 29 August 1975. He resigned shortly after the murder of four national leaders inside the Dhaka Central Jail on 3 November.