Extremely heavy rains unleashed floods across four districts of southern Tamil Nadu, disrupting normal life in Tirunelveli, Tuticorin, Tenkasi and Kanyakumari districts of the state. Thiruchendur in the Tuticorin District witnessed 60 cm of rain in just 15 hours till 1:30 am. Palayamkottai in Tirunelveli District recorded 26 cm. Meanwhile, Kanyakumari saw 17.3 cm of rainfall. A public holiday has been declared today in the affected districts due to the torrential rains. Schools, colleges, banks, private establishments and public sector firms will be shut.