Authorities in southern states of India have issued warnings as Fengal is expected to bring further heavy rainfall.

NEW DELHI, Dec 1 (Reuters) - Cyclone Fengal killed at least 19 people in India and Sri Lanka and caused flooding in Tamil Nadu state and the Puducherry region after crossing India's southern coast from the Bay of Bengal on Saturday.

The cyclone left 16 people dead in Sri Lanka and three in India on Sunday. Heavy rain caused by the storm affected nearly 139,000 families, according to latest data from the Disaster Management Centre in Colombo.

The cyclone made landfall near the union territory of Puducherry on Saturday night, bringing heavy downpour to Tamil Nadu state. Capital Chennai received over 18cm of rainfall in 24 hours from Friday to Saturday evening, the Regional Meteorological Centre (RMC) said.

Kerala is bracing for widespread rainfall, with red alerts issued for Kasaragod, Kannur, Wayanad, Kozhikode, and Malappuram. The IMD predicts very heavy to extremely heavy rain across northern and central districts over the next five days.

Cyclone Fengal weakened after making landfall near Puducherry on Saturday, causing unprecedented rainfall and significant damage. Over 19 fatalities were reported in India and Sri Lanka, and extensive evacuations were conducted.