Air Chief Marshal Dilbagh Singh PVSM, AVSM, VM (March 10, 1926 – February 9, 2001) was the head of the Indian Air Force from 1981 to 1984, as Chief of the Air Staff. He was the second Sikh to hold that position.Dilbagh Singh was commissioned as a pilot in 1944. His operational flying career spanned the Spitfire to introducing the MiG-21 into service in India.