Sariska National Park is situated in

Concept: Every Indian national park or tiger reserve is fixed to one specific state, based on the local ecology it protects; identifying its location means matching the reserve to the state that hosts that ecosystem.

Application: Sariska is a Project Tiger reserve in the Alwar district of Rajasthan, within the Aravalli hill range. It was declared a wildlife sanctuary in 1955, a national park in 1982, and a tiger reserve in 1978.

Cross-check: None of the other options host Sariska:

• West Bengal hosts the Sundarbans National Park, a mangrove tiger reserve.

• Gujarat hosts the Gir National Park, home to the Asiatic lion.

• Assam hosts the Kaziranga National Park, known for the one-horned rhinoceros.

Sariska National Park is therefore situated in Rajasthan.