In the 1960s, Rahman was stationed in the Pakistan Embassy in Indonesia.[4]
Rahman was an accused in the Agartala Conspiracy Case in 1968 that accused a number of Bengalis of working with India for the succession of East Pakistan.[4] His defence lawyer was his older brother Ataur Rahman Khan who was the former Chief Minister of East Pakistan.[5] He was one of three civil service officers charged in the Agartala case.[6]
After the Independence of Bangladesh in 1971, Rahman was appointed by Sheikh Mujibur Rahman as the first ambassador of Bangladesh to the Soviet Union.[4] On 10 January 1972, he received Prime Minister Sheikh Mujibur Rahman at the airport when he returned to Independent Bangladesh from prison in Pakistan.[7] He served from 17 February 1972 to 4 August 1975 and was replaced by Shamsul Hoq.[8] Rahman was posted High Commissioner of Bangladesh to India.[7] He presented his credentials to President of India Fakhruddin Ali Ahmed on 1 August.[9][10]
Death
Rahman died in October 2010.[4] He was 84 at the time of his death.[11]