Section 69(2) in The Naval Ceremonial, Conditions Of Service And Miscellaneous Regulations, 1964
(2)When bands are ordered to play at the hoisting of the Colours, they will play the Indian National Anthem, and then should warships of other countries be present, the National Anthems of those countries, playing first the anthems of the countries represented by Flag Officers in the order of the seniority of these officers, and the remainder in an order varied from day to day.
