The cyclone could hit the coast between Mamallapuram in Tamil Nadu (which is around 56 km from state capital Chennai) and Karaikal in Puducherry. Nivar has brought with it heavy rain and strong winds in coastal Tamil Nadu and Puducherry. On Tuesday, Prime Minister Narendra Modi tweeted to assure the Tamil Nadu and Puducherry governments - both have said today is a public holiday - of all possible support.