Air Marshal Denzil Keelor PVSM, AVSM, VrC, KC  is a retired air marshal from what arm of the Indian armed forces?
Indian Air Force The Indian Air Force (IAF; : "Bhāratīya Vāyu Senā") is the air arm of the Indian armed forces. Its complement of personnel and aircraft assets ranks fourth amongst the airforces of the world. Its primary mission is to secure Indian airspace and to conduct aerial warfare during armed conflict. It was officially established on 8 October 1932 as an auxiliary air force of the British Empire which honored India's aviation service during World War II with the prefix "Royal". After India gained independence from the United Kingdom in 1947, the name Royal Indian Air Force was kept and served in the name of Dominion of India. With the government's transition to a Republic in 1950, the prefix "Royal" was removed after only three years.
Air Force ranks and insignia of India The Indian Air Force's rank structure is based on that of the Royal Air Force. The highest rank attainable in the Indian Air Force is Marshal of the Indian Air Force, conferred by the President of India after exceptional service during wartime. MIAF Arjan Singh is the only officer to have achieved this rank. The head of the Indian Air Force is the Chief of the Air Staff, who holds the rank of Air Chief Marshal. The current Chief of the Air Staff is Air Chief Marshal Birender Singh Dhanoa, appointed on 31 December 2016, following the retirement of Air Chief Marshal Arup Raha.