Which is the only Floating National Park in the world?

Concept: A floating national park is a protected area whose core habitat sits on phumdis — floating masses of vegetation, soil, and decayed organic matter — rather than on fixed land, so the ground itself rises and falls with the lake surface.

Application: Keibul Lamjao National Park sits entirely atop phumdis on Loktak Lake in Manipur. It is the last natural refuge of the endangered Sangai (brow-antlered deer), whose survival depends on this floating habitat — which is why it is recognised as the world's only floating national park.

Cross-check — why the other options don't fit:

• Nokrek National Park (Meghalaya) is a UNESCO Biosphere Reserve in the Garo Hills, known for red panda habitat and wild Citrus relatives — its terrain is fixed hill forest, not floating.

• Nameri National Park (Assam) is a riverine forest along the Jia-Bhoreli river, known for the white-winged wood duck — its ground is fixed riverbank forest, not floating.

• Orang National Park (Assam) is a fixed floodplain grassland, often called the 'mini Kaziranga' for its rhino population — it does not sit on a floating mat of vegetation.