Light to Moderate Rain is likely to occur at isolated places over Ariyalur, Chengalpattu, Chennai, Coimbatore, Cuddalore, Erode, Kanniyakumari, Pudukkottai, Ramanathapuram, Sivaganga, Tenkasi, Thanjavur, The Nilgiris, Thoothukkudi, Tirunelveli, Viluppuram in next 3 hours.