Which Indian state is renowned for its biosphere reserve that is home to the Nilgiri tahr and lion-tailed macaque?

The correct answer is Tamil Nadu . Key Points The state of Tamil Nadu hosts the Nilgiri Biosphere Reserve , which was the first biosphere reserve established in India in 1986 under the UNESCO Man and the Biosphere (MAB) Programme . The Nilgiri tahr (Nilgiritragus hylocrius) is the State Animal of Tamil Nadu and is an endangered mountain ungulate endemic to the Western Ghats , primarily residing in the shola-grassland ecosystems. The lion-tailed macaque (Macaca silenus) is an Old World monkey endemic to the Western Ghats of South India, specifically found in the tropical evergreen forests of Tamil Nadu , Kerala , and Karnataka . This biosphere reserve spans across the borders of Tamil Nadu , Kerala , and Karnataka , but significant protected areas like Mudumalai National Park and Mukurthi National Park situated in Tamil Nadu are critical habitats for these species. Additional Information Rajasthan Known for the Desert National Park and Ranthambore National Park . Home to the Great Indian Bustard and Royal Bengal Tigers . Assam Famous for the Kaziranga National Park and Manas Biosphere Reserve . Primary habitat for the Great One-horned Rhinoceros and the Pygmy Hog . Uttarakhand Contains the Nanda Devi Biosphere Reserve and the first national park of India, Jim Corbett National Park . Home to species such as the Snow Leopard and the Himalayan Musk Deer .