The Mudumalai National Park and Wildlife Sanctuary now in addition affirmed a Tiger Reserve, lies on the northwestern side of the Nilgiri Hills in the westernmost fraction of Tamil Nadu, on the interstate margins with Karnataka and Kerala states in South India. The sanctuary is broken up into 5 ranges - Masinagudi(in Karnataka), Thepakadu, Mudumalai, Kargudi and Nellakota. Here one can often dot herds of Indian elephants, vulnerable Gaur, and Chital. The sanctuary is a haven for Tigers and Leopards and other threatened species. There are at slightest 266 species of birds in the sanctuary, including in danger of extinction species like the Indian White-rumped Vulture and the long-billed vulture.
The Western Ghats, Nilgiri Sub-Cluster (6,000 km2 (2,300 sq mi)), including all of Mudumalai National Park, is under consideration by the UNESCO World Heritage Committee for selection as a World Heritage Site.