(c) Silent Valley National Park is situated in Nilgiri Hills of Western Ghats. The park is bound by Attappadi reserved forest to the east and vested forest of Palaghat division...
(b) Nallamalai is not a biosphere reserve. It is hill of Eastern ghats which stretches over Kurnool, Mahabubnagar, Guntur and Kadapa districts of the state of Andhra Pradesh.
(c) The Cardamom Hills are southern hills of India and part of the southern Western Ghats located in southeast Kerala and southwest Tamil Nadu. They are not in coromandel coast....