Section 92(11) in The Naval Ceremonial, Conditions Of Service And Miscellaneous Regulations, 1964
(11)Officers of Government of India's Diplomatic and other services who are also Flag, General or Air Officers, are entitled in every respect to the honours due to their Naval, Army or Air Force rank if these are higher than those due to their civil office, but on occasions of reception on board Indian Naval Ships the band shall play the salute applicable to the civil appointment held.
