On Sunday, pockets of Chennai received up to 7 cm rain.
With heavy rain expected in most parts of Tamil Nadu today, schools and colleges will be shut in Puducherry, Chennai and adjoining districts Kancheepuram and Tiruvallur. However the cyclone threat is over, say authorities.
The cyclonic depression is moving across the Bay of Bengal. It is expected to cross between Puducherry and Karaikal this noon.
Under the influence of the cyclonic depression, rainfall is expected in most parts of Tamil Nadu with heavy to very heavy rainfall over north coastal Tamil Nadu and Puducherry in the next 24 hours.
Authorities in Puducherry say they've identified many safe shelters.
"We expect the landfall to be between Puducherry and Cuddalore. We've ensured enough stock of food grains and medicine too. Eight task forces are monitoring on the ground," said Puducherry Collector D Manikandan.
Isolated heavy rainfall is also expected in south coastal Andhra Pradesh, south interior Karnataka and Kerala during the next 24-48 hours.
Fishermen in Tamil Nadu have been advised not to venture out to sea in the next 24 to 48 hours "as the sea will be rough to very rough," a Met department official said.
Till Monday morning, pockets of Chennai received up to 14 cm rain. The northeast monsoon, which has brought the wet spell, had set in over the southern region on October 29.