As the storm began crossing coast, the rainfall stopped briefly. It returned with strong winds in some localities close to the city and the suburban shoreline.
The approach roads to the Marina beach, off the arterial Kamaraj Salai, were flooded and sheets of water reached close to the main road where the city's fishermen had securely tied up their boats.
Nivar made landfall near Puducherry in the early hours of Thursday, bringing heavy rains to the union territory and neighbouring Tamil Nadu, India Meteorological Department (IMD) officials said. Nivar weakened into a severe cyclonic storm after it crossed coast near Puducherry, the IMD said.
Earlier, the IMD had said Nivar will cross coast near Puducherry with a wind speed of 120-130 kmph, gusting up to 145 kmph. The landfall of Nivar began late on Wednesday night.
Deputy Director General of Meteorology, Chennai, S Balachandran said rainfall is likely to continue in Tamil Nadu. "The storm now lies inside the land area. There will, however, be rainfall and strong winds as well," he said.