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Ahmed passed matriculation by obtaining eighth place from St. Gregory High School, Dhaka in 1950 and I.A. from Notre Dame College in 1952 by obtaining tenth place. He passed B.A. (Hons) and M.A. in History from Dhaka University in 1957. In his university days, he was a chess champion and captain of the basketball team of S. M. Hall.
Ahmed joined Jagannath College (now Jagannath University) in the History department as a lecturer and later joined Dhaka University in 1958. He went to the UK with Commonwealth Scholarship in 1964 and obtained Honours degree in World History from London School of Economics (LSE). 
Role in liberation war
Accused of helping in the liberation war of Bangladesh he was taken to Dhaka Cantonment in 1971 for questioning. He was released after a few days. Then again on 14 December 1971 he was picked up from Mohsin Hall by the Pakistani paramilitary Al Badar forces. On 4 January 1972 his clothes and mutilated body were identified in Mirpur area.
On 3 November 2013, Chowdhury Mueen-Uddin, a Muslim leader based in London, and Ashrafuz Zaman Khan, based in the US, were sentenced in absentia after the court found that they were involved in the abduction and murders of 18 people - nine Dhaka University teachers including Ahmed, six journalists and three physicians – in December 1971.
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