Puducherry received 48.4 cm rainfall in 24 hours, the highest in 30 years.
Fallen trees caused by Cyclone Fengal blocked key roads in Puducherry, adding to the challenges of flood-hit residents and stranding commuters.
Public buses and autos were stranded, leaving passengers in long queues.
Power disrupted since 10 pm; partial restoration expected by Sunday night.
Troops from the Chennai Garrison Battalion under the Dakshin Bharat Area were called in by the District Collector of Puducherry in the early hours of 1st December, at around 0100 hrs, to assist with rescue efforts in flooded areas.
The first day of December saw Puducherry drenched like never before.
Workers reported being stuck in traffic for hours due to blocked roads.