Mohsin passed away while receiving treatment at Dhaka's Combined Military Hospital at 9:30am on Monday. Selina Haque, additional secretary to the defence ministry, confirmed this news. Prime Minister Sheikh Hasina expressed her deep sorrow at Mohsin's death and extended her condolences to his grieving family. Mohsin had been admitted to CMH on June 2 after testing positive for COVID-19. As his condition worsened, he was moved to intensive care and received plasma therapy. Mohsin, who was the younger brother of former principal secretary Kamal Abdul Naser Chowdhury, was promoted to the rank of senior secretary on June 14 while he was still in the hospital. Mohsin, born in Cumilla in 1963, obtained an MSc in Soil Science from Dhaka University and later completed an MA in Governance Studies from Northern University in Dhaka. A member of the 1985 BCS batch, he served in various capacities at the Ministry of Fisheries and Livestock, Ministry of Finance, Ministry of Industries, Ministry of Health and Family Welfare, and the Prime Minister's Office. Prior to his role in the defence ministry, he was the secretary to the Ministry of Environment, Forest, and Climate Change.