Section 44(3) in The Naval Ceremonial, Conditions Of Service And Miscellaneous Regulations, 1964
(3)Indian Naval Ships shall also be dressed by order of the Senior Officer present when in the presence of a President's flag or Royal Standard on occasions of visits of a President or Royal personages, and on certain Commonwealth or Foreign ceremonial occasions when in the presence of ships, or in the waters of the nations concerned. The manner of dressing and time during which ships shall be dressed shall be stated on each of these occasions according to circumstances.
