Born and raised in New Delhi, Chhina was selected for the National Defence Academy in 1976,
shortly after graduating from St. Columba's School. He was commissioned into the flying branch of the Indian Air Force (IAF) as a pilot officer on 11 June 1981.[1] He served with distinction as a helicopter pilot in all sectors in which the IAF was operational. From 1990 to 1993 he was an IAF flight instructor.[citation needed]
Military historian
After retiring from active service in 1997 as a squadron leader, Chhina became a historian of the IAF,[2] the former British Indian Army, and Indian military medals and decorations.[3]
Chhina is the secretary and editor at the United Service Institution of India (USI) Centre for Armed Forces Historical Research, New Delhi, and is the vice-president of the Indian Military Historical Society (IMHS), UK.[4][when?] He is also a member of the IAF Aerospace Museum Apex Steering Committee and the Government of India's Archival Advisory Board, and was a member of the joint USI–MEA (Ministry of External Affairs) Steering Committee responsible for coordinating international and national commemoration of India's participation in the First World War in connection with the centenary of the conflict.[5][6][7]
In 2016 Chhina was awarded an Honorary MBE for services to First World War centenary commemorations.[8]