Major roads were submerged after about three hours of rains in the morning, leading to massive traffic jams in several areas.
Union Territory Chandigarh recorded 115 mm rainfall between 8:30 am till 2:30 pm, a Met department official said.
Traffic snarls were a common sight on important arteries in Chandigarh, Mohali Dera Bassi and Zirakpur with office- goers the worst hit.
Several cars, stuck on flooded thoroughfares, especially the 200-feet airport road in Mohali, broke down, leaving commuters stranded.
Two-wheelers could be seen wading through knee-deep water that had accumulated on roads from clogged drainage systems, exposing claims of civic authorities on preparations to deal with logging problems.