Section 44(5) in The Naval Ceremonial, Conditions Of Service And Miscellaneous Regulations, 1964
(5)On occasions when Indian Naval Ships are dressed in honour of a Commonwealth or foreign ceremonial or personage, single-masted ships wearing the President's standard, flag or broad pendant shall wear the country's ensign alongside this standard, flag or broad pendant; other singlemasted ships shall wear the country's ensign alone. In ships with more than one mast wearing the President's standard, the country's ensign shall be worn at the fore. In ships with more than one mast wearing a flag or board pendant, the country's ensign shall be worn at the main, and the flag or broad pendant at the fore; other ships shall wear the country's ensign at the main and the white ensign at the remaining masts. Ships not supplied with the appropriate country's ensign shall wear the white ensign instead, and be subject to the provisions of sub-regulation (4).
