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It's a part of Indira Gandhi Wildlife Sanctuary & National Park. Hence, it's a restricted area and one needs prior permission from the Tamil Nadu Forest Department to visit this place. Visitors has to obtain permission from Chief Wildlife Warden, Chennai to enter the Grass Hills. Grass hills is a picturesque spot located in the Valparai hills range, at a height of approx: 2400 m asl, with cool climate getting cooler at night, a part of Indira Gandhi Wild Life Sanctuary. Right now all efforts are being undertaken by the government to preserve the flora and fauna of this location. Nilgiri Thar is native of this place apart from elephants, Indian Gaur, Bear, Nilgiri Langurs, and a wide variety of birds including Hornbills.