Mohsin, who had been undergoing treatment at Dhaka's Combined Military Hospital, passed away at 9:30am on Monday. Selina Haque, an additional secretary to the defence ministry, confirmed the news. Prime Minister Sheikh Hasina expressed her deep sorrow at Mohsin's death and extended her condolences to his family. Mohsin had been admitted to CMH on June 2 after testing positive for COVID-19. His condition worsened, and he was moved to intensive care where he received plasma therapy. Mohsin, 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 1963 in Cumilla, obtained an MSc in Soil Science from Dhaka University and later completed an MA in Governance Studies from Northern University in Dhaka. As a member of the 1985 BCS batch, he held various positions in 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 time at the defence ministry, he served as the secretary to the Ministry of Environment, Forest and Climate Change.