The correct pairing of Nokrek Biosphere Reserve with Garo Hills is supported by the geographical context that positions the reserve within the Garo Hills region of Meghalaya, known for its rich biodiversity and diverse ecosystems. In contrast, Loktak Lake is not located in the Barail Range but rather in the state of Manipur; it is the largest freshwater lake in northeast India. Similarly, Namdapha National Park is situated in Arunachal Pradesh, but it is not located in the Dafla Hills, reinforcing that the context of ecological and geographical divisions is vital for determining correct associations in UPSC examinations. Understanding such pairings is essential for questions related to biodiversity conservation, geographic distribution, and ecological significance in the UPSC syllabus.