which are the top and important BIO - SPHERE RESERVES in india Share with your friends Share 1 Aksa George answered this silend valley,chenthuruni and periyar belongs to nilgiri biosphere 0 View Full Answer Sumitta answered this cosevations 0 Shaik Shahid answered this NILAGIRI BIOSPHERE RESERVE 1 Ameen Bin Shahid answered this nilagiri 0 Ameen Bin Shahid answered this yujhf 0 Ameen Bin Shahid answered this Nilgiri Biosphere reserve,Sundarbans Biosphere reserve,Gulf of mannar Biosphere reserve,Nandadevi biosphere 0