Heavy overnight monsoon rain hits Mumbai and parts of the Mumbai Metropolitan Region, leading to waterlogging, localized disruptions, and weather alerts. The Brihanmumbai Municipal Corporation (BMC) reports severe water accumulation in low-lying areas, including the Andheri subway, which is closed to vehicular movement after flooding. BMC officials say teams work to prevent vehicles from entering the inundated stretch while officers stay on site; officials also indicate they have not yet found a temporary fix for the waterlogging at that location. BMC rainfall data cited in reporting shows an average of 56 mm between 8:00 am and 11:00 pm on June 23, with rainfall in western and eastern suburbs. Separate reporting notes waterlogging at other locations such as Everard Nagar and Sion-Matunga. In rail operations, heavy rain causes washout and track-bed subsidence on the Trans Harbour line between Turbhe and Kopar Khairane (and mentions the broader affected stretch), leading to temporary suspension and safety declarations for both lines. Emergency restoration follows, and services resume with speed restrictions before gradually normalizing. Public transport across the city is largely reported as functioning, with only limited delays on some corridors. The India Meteorological Department (IMD) issues orange/red alerts for further intense rainfall in the region.