Section 46(51) in The Port Rules for the Port of Bombay
(51)A Red Flag by day or red Light by night exhibited at the Flagstaff near the landing place at Pir Pao Oil Pier indicates that the ship alongside is actually loading or discharging dangerous petroleum.While this signal is exhibited no steam launch or vessel with fires or smoking on board is allowed alongside the ship or the Pier.Distress Signals
