Section 81(2) in The Naval Ceremonial, Conditions Of Service And Miscellaneous Regulations, 1964
(2)The health of the President shall be honoured, seated, in all Naval messes, on board ship and on shore, on all occasions, except :(a)When the National Anthem is played; the toast shall then be drunk standing.(b)When toasts to Heads of Foreign States are being drunk, they and that of "The President of India" shall be drunk standing whether National Anthems are played or not.
