India Meteorological Department (IMD) has issued severe weather warning for next 24 hours. It has predicted heavy to very heavy rain at a few places with extremely heavy falls at isolated places over Nicobar Islands and heavy at isolated places over Andaman Islands.<br/><br/>Fishermen have been asked not to venture into the sea around Nicobar Islands. An official release said, sea condition is expected to be rough to very rough along and off shore.<br/><br/>The Department has also predicted dense fog at isolated places over Uttar Pradesh, Madhya Pradesh, Bihar, north Chhattisgarh, Nagaland, Manipur, Mizoram and Tripura.