Light to Moderate Rain is likely to occur at isolated places over Chengalpattu, Coimbatore, Cuddalore, Erode, Kancheepuram, Mayiladuthurai, Nagapattinam, Pudukkottai, Ramanathapuram, Sivaganga, Thanjavur, The Nilgiris, Thiruvarur, Thoothukkudi, Tiruppur, Viluppuram, Karaikal, Pondicherry in next 3 hours.