New Delhi, June 24 -- The southwest monsoon is finally advancing across India and gaining momentum, bringing much-needed relief from the summer heat. However, it is also triggering heavy rainfall, massive waterlogging, and travel disruptions in several states.

On Tuesday, the southwest monsoon made landfall in Mumbai, 13 days after its normal onset date, and brought widespread rainfall across the city and suburbs, with several areas reporting waterlogging. Mumbai received more than 200 mm of rain in just 24 hours ending at 8 AM today.

A day after the monsoon made landfall, India's financial capital experienced heavy overnight rainfall, disrupting suburban train services, causing waterlogging in low-lying areas, and leaving many commuter...