Khan was commissioned in the Pakistan Navy on 1 December 1977. Upon attaining his commission, he was selected to undergo his training at Britannia Royal Naval College, Dartmouth, Devon, United Kingdom. On his return from UK, he joined the Submarine Service of the Pakistan Navy where-in he served onboard submarines in various capacities. He specialized in the Arms of Submarines from CIN, St. Mandrier, France in 1986. He also served as ADC to Chairman Joint Chiefs of Staff Committee from 1989–91. He commanded two submarines; S-134 PNS Ghazi/M and S-133 PNS Mangro from 1994–96.
Defence attaché and military advisor
He served as Defence and Naval Advisor in Pakistan High Commission Kuala Lumpur (Malaysia) from 1996–1999. On return, he was appointed at Naval Headquarters as Director Maritime Affairs and later as Director Submarine Operations. He has also served as Deputy Director General Maritime Security Agency. Upon his promotion to the rank of Commodore, he was appointed to the faculty of National Defence University, Islamabad in 2004 for two years from where he was appointed Commander North before being appointed as Commandant, PN War College, Lahore.
Before his appointment as Director General Maritime Security Agency, he was serving as Chief Staff Officer to Commander Pakistan Fleet. His interests include reading and relaxing by listening to music and golfing in leisure time. He is married and has a daughter and a son.