Nilgiris Mountains is a part of Western Ghats in western Tamil Nadu, a state in India. As the name suggests, the translation of 'Nilgiris' means 'Blue Hill' in four major languages in India. Mudumalai National park, a part of Nilgiris Mountain, is located in Tamil Nadu; the national park is connecting Karnataka and Kerala with Tamil Nadu due to the area coverage. One of the tribes, known as Kotas, resides in the Nilgiris Mountain along with Todas, Irulas and Kurumbas.
Niligiris Mountain is also a part of UNESCO World Network of Biosphere Reserve to protect the Bio-reserve in Nilgiris and in India. Nilgiris Mountains is also known for its prehistoric monuments present in the reserve. A large number of prehistoric artifacts were unearthed by excavators. Few of the prehistoric artifacts of Niligirs Mountain are also stored in the British Museum which was assembled by colonial officers Major M. J. Walhouse, James Wilkinson Breeks, and Sir Walter Elliot. The highest waterfall - Kolakambai Fall and the second highest waterfall - Catherine Falls is located in Nilgiris. More than 2700 species of flowers was discovered in the Nilgiris, along with 160 species of fern and fern allies. It is also believed that many Ayurvedic and natural herbs are also found in this mountain.