Section 7 in The Naval Ceremonial, Conditions Of Service And Miscellaneous Regulations, 1964
7. [ National flag at Jackstaff [Substitued by S.R.O. 215, dated 4th May, 1974]
(1)On occasions when an Indian Naval Ship or vessel is under way with the President embarked, such ship or vessel and all escorting Ships and vessels, shall wear the National Flag at the jackstaff : and shall wear the white ensign and National flag continuously day and night.(2)The provisions of sub-regulation (1) shall apply in relation to Indian Naval Ships and vessels wearing or escorting flag of the President of a foreign Republic or a royal standard as they apply in relation to Indian Naval Ships or vessels with the President embarked or escorting a vessel in which the President is embarked.]
