Explanation:

• The Nilgiri Biosphere Reserve is an International Biosphere Reserve in the Western Ghats and Nilgiri Hills ranges of South India. 
• It is a part of the Western Ghats which was declared a World Heritage Site by UNESCO in 2012.
• The Biosphere reserve includes a) Bandipur National Park b) Nagarahole National Park c) Mudumalai Wildlife Sanctuary d) Mukurthi National Park e) Sathyamangalam Wildlife Sanctuary f) Silent Valley National Park and g) Wayanad Wildlife Sanctuary.