[4] Khan passed his SSC from Mahishasura BK High School and HSC from Dhaka College in 1982 and 1984 respectively.
[8] In 2016, Khan was promoted to joint secretary and made director of Health Economics Unit.
[5] Khan was transferred from the additional secretary of Health Service Division to the Ministry of Commerce in August 2020.
[10] He was transferred from the Ministry of Commerce and made chairman of the Land Reform Board.
[11] Khan's wife, Salma Chowdhury Ruma, was a member of parliament from a women's reserved seat of the Awami League.