The rain has unleashed its fury in Tamil Nadu. The IMD has issued a 'Red' alert for Tenkasi, Thoothukudi, Tiruvaneli and Kanyakumari districts. Forty lakes in the Kovilpatti area of Thoothukudi district have reached full capacity. According to the IMD, heavy rain was expected to occur in one or two places over Kanyakumari, Tirunelveli, and Thoothukudi.