The correct option is Assam.
Explanation
Manas Tiger Reserve is a prominent protected area located in the state of Assam.
- Location and Geography: It is situated in the Himalayan foothills in western Assam. It is contiguous with the Royal Manas National Park in Bhutan. The Manas River, a major tributary of the Brahmaputra, flows through the heart of the national park.
- Designations:
- It was declared a sanctuary in 1928.
- It is a UNESCO Natural World Heritage Site (declared in 1985).
- It is a Project Tiger Reserve, an Elephant Reserve, and a Biosphere Reserve.
- Biodiversity: The park is known for its rare and endangered endemic wildlife, including the Assam Roofed Turtle, Hispid Hare, Golden Langur, and Pygmy Hog. It is also famous for its population of Wild Water Buffalo.
Key Takeaway: Manas Tiger Reserve is located in Assam and holds multiple statuses, including that of a UNESCO World Heritage Site and a Biosphere Reserve.