 In 1987–88, Rear-Admiral Tasnim was appointed as DCNS (Personnel) and later became a senior fleet commander in 1989–91, with as three-star rank, Vice-Admiral.In 1991, Vice-Admiral Tasnim's name was announced to be appointed as Chairman of the National Shipping Corporation which he stayed until 1992.In 1992, Vice-Admiral Tasnim was moved as chairman of Karachi Port Trust (KPT), which he remained until his retirement from the Navy in 1994.