Sanjay Gandhi National Park (SGNP), previously Borivali National Park, is a large protected area in the northern part of suburban Mumbai city in Maharashtra State in India.[3] It encompasses an area of 104 km2 (40 sq mi) and is surrounded on three sides by India's most populous city.[4] It is notable as one of the major national parks existing within a metropolis limit and is one of the most visited parks in the world[3]