Mumbai and Thane are under a red alert as heavy rainfall causes widespread waterlogging. Significant rainfall has been recorded across the city, with areas like Andheri Subway experiencing severe inundation. Authorities are urging citizens to avoid non-essential travel and to stay away from the seafront. Rescue teams are deployed, and efforts are underway to clear traffic and address the waterlogging issues, including a permanent solution for the Andheri Subway.