Section 6 in The Naval Ceremonial, Conditions Of Service And Miscellaneous Regulations, 1964
6. The President.-
(1)A [21gun] [Substitued by S.R.O. 348, dated 20th September, 1978] salute shall be fired on the assumption and relinquishment of office by the President, by all Indian Naval Ships in ports in India.(2)A [21gun] [Substitued by S.R.O. 215, dated 4th May, 1978] salute shall be given to the President on his arrival in and departure from India on occasions notified as 'Public', by all Indian Naval Shipspresent in the port of arrival or departure, and by any ship on her arrival or departure, which may arrive at or leave that port during the stay of the President(3)Whenever the President shall embark in any ship of war, the [National flag] [Substitued by S.R.O. 17E, dated 5th July, 1967] shall be hoisted at the main, and the National Flag at the [fore] [Substitued by S.R.O. 348, dated 20th September, 1978] of such ship; or if on board a vessel with less than two masts, they shall be hoisted in the most conspicuous part of her. Should however, the President go on board for a short visit, the [National flag] [Substitued by S.R.O. 17E, dated 5th July, 1967] only shall be hoisted.A [21 gun] [Substitued by S.R.O. 215, dated 4th May, 1974] salute shall also be fired from a ship or vessel on the President going on board and again on leaving her; and every one of Indian Naval Ships present shall likewise fire a [21 gun] [Substitued by S.R.O. 215, dated 4th May, 1974] salute on the hoisting of those flags, and such further 3[21gun] salutes shall be fired on the President quitting the ship or vessel or passing in a boat or on such other occasions as may be directed.(4)Whenever the President shall be embarked in a ship or vessel at sea and the before-mentioned flags shall be hoisted in her, every one of Indian Naval Ships, meeting, passing or being passed by her, shall fire a [21 gun] [Substitued by S.R.O. 215, dated 4th May, 1974] salute.(5)The National Flag at the main indicates the presence of the President on board and hence is to be hoisted at the main only on occasions when the President is actually present.
