The IMD has issued heavy to very heavy rainfall warning for 20 states/Union Territories for Thursday (11 September). It is very likely over Odisha, Andaman & Nicobar Islands, Arunachal Pradesh, Assam, Meghalaya, Bihar, Chhattisgarh, Andhra Pradesh, Uttar Pradesh, Nagaland, Manipur, Mizoram, Tripura, Karnataka, West Bengal, Sikkim, Tamil Nadu, Puducherry, Telangana and Maharashtra.