Port Blair, Nov 23: The Indian Meteorological Department, Kolkata has forecast heavy rain (07-¬12 CM) at isolated places over Nicobar Islands in the next three days. The general public have been advised to take precautionary measures and in case of any emergency contact the State Control Room, District Control Room and Emergency Operation Centres, State Control Room: 03192- 238880 (Tele-Fax), 1077(Helpline), 1070(District Control Room), District Control Room: 03192-238881, EOC (Campbell Bay): 03193-264020, EOC (Kamorta): 03193-263222, EOC (N&M): 03192-262960, EOC (Hut Bay): 03192-284014, EOC (Car Nicobar): 03193-265241 and EOC (Havelock): 03192-282030.