‘Almost Like A Cloudburst’: What Triggered Kolkata’s Torrential Downpour? The relentless downpour caused severe waterlogging across the city and led to seven deaths, mostly due to electrocution. Recommended StoriesAccording to the India Meteorological Department (IMD), Kolkata’s Alipore observatory recorded a staggering 251.4 mm of rainfall in 24 hours, causing massive urban flooding in the state’s capital. Apart from Alipore, Salt Lake observatory also recorded 230 mm rainfall, 130 mm in Amta (Howrah), and 110 mm in Digha. With over a decade of extensive field experience, she has brought incisive ground repo... Read MoreFirst Published: September 23, 2025, 20:09 ISTNews cities ‘Almost Like A Cloudburst’: What Triggered Kolkata’s Torrential Downpour?