The Indian Home Ministry said on Monday that more than 100 people have been killed in the past week alone, due to floods caused by heavy monsoon rains, with thousands of others fleeing their homes to find a safe haven in relief camps.
Officials said that at least 48 people were killed in West Bengal after a cyclone struck the region, causing the evacuation of more than 200,000 people to the relief camps.
In eastern India, railway tracks and roads have been submerged, bringing daily life to a halt on Saturday. Schools and offices were closed in the states of West Bengal and Odisha, where cyclonic storm Komen is expected to make landfall.
India, which regularly faces severe flooding during the monsoon rain season, is suffering alongside its neighbouring countries Pakistan and Myanmar.
Myanmar declared a state of emergency in four devastated rural regions on Saturday, after heavy monsoon floods left 27 people dead and thousands of others displaced.
In Pakistan officials said at least 81 people have been killed across the country after heavy rains triggered devastating floods, leaving thousands of people homeless.
Heavy rains and flash floods also killed 17 people in Vietnam and 11 others in Bangladesh, destroying roads, railways, bridges and houses.