Section 43 in The Naval Ceremonial, Conditions Of Service And Miscellaneous Regulations, 1964
43. From Merchant Ships.
- When Commonwealth, foreign or Indian merchant ships, or any ships not in the Indian Navy, salute Indian Naval Ships, the return salutes shall be five guns to a single ship and seven to more than one sailing in company.Section VI - Dressing Ship and Flags to be hoisted when saluting or returning salutes
