Manas Wildlife Sanctuary is a National Park, a Tiger Reserve and a UNESCO heritage site. It is located on the Himalayas foothills of the North East state of India, Assam, and it is contiguous with the Royal Manas National Park of Bhutan. The Manas National Park, a UNESCO World Heritage (WH) site is a part of the Himalayan biodiversity hotspot . It also forms the core of the Manas Tiger Reserve, which is recognized as an important tiger habitat. In 1985, when Manas was listed as a WH site, not only had a large tiger population, but also other large carnivores as well as diverse and abundant populations of wild ungulates to sustain them .