Khan is a four-time MLA, who had served as the food and civil supplies minister in the H.D. Kumaraswamy government for over a year from June 2018.
The Assam government paid Rs 25 (Rs 37 with GST) to a firm for each 200-ml bottle of sanitiser it ordered. To another, with links to Himanta Biswa Sarma, it paid Rs 231 for every 500-ml bottle and Rs 100.30 for every 100-ml bottle – Rs 137 and Rs 81 more per bottle respectively if the former firm's rates were to be applied.