Kolkata Floods After 6 Hours of Torrential Rain: Low-Pressure Over Bay Triggers Havoc Ahead of Durga Puja Photo : PTIKolkata Weather : Kolkata woke up to chaos on Tuesday after six hours of relentless rain turned large parts of the city into a flood zone. The timing couldn’t have been worse, with Durga Puja preparations already in full swing. The civic body’s rain gauges recorded staggering amounts: Ballygunge (295 mm), Gariahat (262 mm), Jadavpur (258 mm), Alipore (240 mm) and Mukundapur (280 mm). In just a few hours, Kolkata received more rain than it had in the previous 22 days combined. The coming 24 hours will be crucial in determining how quickly Kolkata can recover before Durga Puja celebrations begin.