The IMD has issued heavy to very heavy rainfall and heatwave warnings for several states/UTs for Wednesday. Heavy to very heavy rainfall is very likely over Assam, Meghalaya, Arunachal Pradesh, Kerala, Nagaland, Manipur, Mizoram, Tripura, Puducherry, Sikkim and parts of sub Himalayan West Bengal. Meanwhile, heat wave is likely over parts of gangetic West Bengal and Odisha.