IMD has issued rainfall and heatwave warning for several states/UTs for Sunday. Heavy to extremely heavy rainfall is likely over West Bengal, Sikkim, Assam, Meghalaya, Arunachal Pradesh, Bihar, Karnataka, Kerala, Puducherry, Lakshadweep, Nagaland, Manipur, Mizoram, Tripura, Odisha, Andhra Pradesh and Tamil Nadu. Heatwave is very likely over Bihar, Uttar Pradesh, Telangana and Maharashtra.