Section 66(b) in The Border Security Force (Ceremonials And Marks Of Respect) Rules, 1989
(b)Officers in attendance on the President or the personal staff of Governor (when such Governor of a State represent the President on official occasions) will not Salute when the National Anthem is played for the National Salute but will stand to attention. The exception to the above is on the occasions of unfurling of the National Flag on the Republic Day and Independence Day when the National Anthem is played on the presentation of arms to the National Flag. All officers including officers in attendance on the personage mentioned above shall Salute.
