The IMD has issued heavy to extremely heavy rainfall warning for several states over next few days. Heavy rainfall is very likely over Arunachal Pradesh, Assam, Meghalaya, Nagaland, Manipur, Mizoram and Tripura during July 22-24. Very heavy rainfall is expected over Rajasthan, Chhattisgarh, Odisha, Tamil Nadu and Puducherry, while extremely heavy rainfall is likely over parts of Gujarat.