Heavy rain since past midnight flooded roads and residential complexes across the city, leaving vehicles stranded for hours in knee-to-waist-deep water at major intersections, including Park Circus, Gariahat, Behala, and College Street.
The deluge - 251.4 mm in less than 24 hours - was the highest since 1986 and the sixth-highest single-day rainfall in the last 137 years, only behind the record 369.6 mm in 1978, 253 mm in 1888, and 259.5 in 1986.
Kolkata Mayor and state Urban Development Minister Firhad Hakim told PTI that most parts of the city were waterlogged and teams of the Kolkata Municipal Corporation (KMC) were working around the clock to drain out the water.
