Binsar Wildlife Sanctuary... Binsar covers the top of the Jhandi Dhar hills, and is a mid-altitude wildlife sanctuary, home to wild boar, deer, monkey, black bear... Sundarbans National Park... Assam is a place of huge biodiversity, since it is largely unspoiled in terms of natural habitats. Its world famous Manas National Park, located on the lowest slopes of the Eastern Himalayas, preserves rainforests packed with rare tree species and wetlands fed by some of the highest rainfall levels on earth, not to mention the Manas River, a tributary of the sacred Brahmaputra River. The river splits into two separate rivers, namely, Beki and Bholkaduba.