After the Assassination of Sheikh Mujibur Rahman there was confusion in the army. He was in Dhaka due to personal reasons on 3 November when Major General Khaled Mosharraf launched a coup to remove the assassins of Sheikh Mujib from power. He was assassinated with his former commander Mosharraf on 7 November 1975 in Dhaka Cantonment in the subsequent coup by Colonel Abu Taher. According to Captain (Rtd) Sitara Rahman (Bir Protik, also sister of Major Haider), General Osmani earlier advised Haider to approach Major General Zia together with Khaled Mosharraf, for hope of negotiation, reminding him that all of them had fought together hand in hand in the 1971 war. Ziaur Rahman who had been confined in cantonment from November 3 to November 6, was freed by supporters of Colonel Taher at very early hours of November 7. However, in a fast moving spiral of events, Haider along with Mosharraf and Colonel Huda were killed by few army officers, early hours on November 7. [Khaled] Later Haider was buried in his hometown in Kishoreganj.