[2] Khan is a retired medical officer of Bangladesh Army with the rank of colonel.

[3] He was elected to parliament from Jatiya Party of the Grand Alliance in 2008 representing Gaibandha-1.

[4] On 21 February 2017, Khan was arrested his house in Bogra, in connection with the murder of Manjurul Islam Liton, the then incumbent Jatiya Sangsad member from the same constituency.

[7][8] On 26 May 2019, Anti-Corruption Commission filed a case against Khan on amassing wealth beyond known sources of income.

[9] On 4 April 2024, he was sentenced to four years in prison and fined Tk 61.92 lakh.