The Indian Meteorological Department (IMD) announced the onset of monsoon season in Mumbai on Monday. The city experienced exceptionally heavy rainfall over the past 24 hours. According to IMD's latest update, the city received 135.4 mm of rainfall until 8.30 am on Monday. Meanwhile, South Mumbai received 252 mm of rainfall in the past 24 hours until 11 am on Monday. These records marked the highest rainfall received in the month of May since May 19, 2000. 

On Monday, Mumbai woke up to heavy rainfall across all regions. In the past few days, the city had experienced intense showers. Thunderstorms accompanied by lightning and gusty winds lashed the city, causing significant disruption. The downpour affected suburban rail services and slowed traffic due to poor visibility in several areas.