Section 12(1) in The Naval Ceremonial, Conditions Of Service And Miscellaneous Regulations, 1964
(1)whenever any of Indian Naval Ships arrive at a foreign port in which salutes are returned, and where the flag of the President of a Republic or the standard of any Royal personage is hoisted, the customary salute to the flag of the nation to which the port belongs shall in all cases be fired first, the President's flag or the Standards present being subsequently saluted in the order directed in Regulation 11.
