While electricity supply has been suspended across Chennai as a precautionary measure, heavy rains and high velocity winds were likely to continue for the next eight to 12 hours, according to Met department.
Thousands of people from low-lying areas in north Chennai, Pazhaverkadu in Tiruvallur district and villages off Mamallapuram, in Kanchipuram district were shifted to relief centres, as the cyclone made landfall near Chennai.
Amid heavy rains, more than 9,400 people living along Bay of Bengal coast in Nellore district of Andhra Pradesh were moved to relief camps.
The Indian Navy has two ships ready replete with doctors, food and water for 5,000 people and 30 diving teams with additional relief material.
Eight fishermen of Tamil Nadu were rescued near the Sriharikota High Altitude Range, while search is on for 10 more missing persons. Fifteen NDRF teams have been deployed along coastal regions of Tamil Nadu ad Andhra Pradesh.