Air Vice Marshal Hari Chand Dewan was commissioned in the Indian Air Force in 1940. He saw active service in Burma during World War II. He has held various command and staff appointments with distinction. He attended the Flying Instructors Course in the United Kingdom in 1942 and the RAF Staff College Course, Andover, in 1948-49. He also attended the National Defence College Course in 1961-62. After holding the appointment of Senior Air Staff Officer at Headquarters, Western Air Command, he was posted as Director of Operations (Transport) at Air Headquarters where he had to handle a variety of difficult problems relating to air transport support. During the Chinese aggression in 1962, he planned the airlift programme involving not only the transport fleet of the Air Force but almost the entire fleet of the Indian Airlines and non-scheduled operators. He was also instrumental in arranging compilation of navigation data for airfields and the revision of aeronautical charts. During his tenure as Air Officer Commanding-in-Chief, Central Air Command, he has made marked improvement in the operational potential of the fighting elements of the Command. As Air Officer Commanding-in-Chief, Maintenance Command, since 1st April 1968, he has shown a great deal of energy and initiative in meeting the maintenance and supply requirements of the operational commands.

Air Vice Marshal Teja Singh Virk was commissioned in the Air Force in 1940. He saw active service during World War II. He attended Advanced Navigation Course at Shawbury and Specialist Navigation Course at Empire Navigation School in 1947 and the Defence Services Staff College Course at Wellington in 1950-51. He also attended the 1st Course at National Defence College in 1960-61. He has held several important appointments and is at present Air Officer Commanding-in-Chief of Training Command. During the Chinese aggression of 1962 he was the Air Force Liaison Officer with the Eastern Command (Army), and later he served as Liaison Officer with the Central Command. In both these appointments, he represented the needs of one Service to the other most creditably with The result that tasks never went in default either during 1962 or later when important commitments had to he undertaken by the Air Force for the Army, NEFA Administration and the Government of Assam.