Answer: Mumbai
Notes: Heavy rains in Mumbai caused Vihar Lake to overflow recently. Vihar Lake is a man-made reservoir built by the British government between 1856 and 1860. It is located near Vihar village on the Mithi River inside Borivali National Park, also called Sanjay Gandhi National Park, in North Mumbai. The lake gets its water from the Powai-Kanheri hill ranges in its catchment area. It is the largest lake in Mumbai among the Salsette group of islands.
