IMD has issued heavy rainfall and fog warnings for several states/UTs for Tuesday. Heavy rainfall is very likely over Tamil Nadu and Puducherry. Very dense fog is very likely over Punjab, Haryana, Chandigarh and Uttar Pradesh. Meanwhile, dense fog is very likely over Himachal Pradesh, Uttarakhand, Rajasthan, West Bengal, Sikkim, Odisha, Assam, Meghalaya, Nagaland, Manipur, Mizoram and Tripura.