Schools in 11 districts of Tamil Nadu have been closed today (Thursday) amid heavy rainfall forecast, ANI reported. The 11 districts where schools have declared a holiday are - Chennai, Villupuram, Thanjavur, Mayiladuthurai, Pudukkottai, Cuddalore, Dindigul, Ramanathapuram, Tiruvarur, Ranipet and Tiruvallur. IMD has predicted heavy to very heavy rainfall in several districts including Sivaganga.