The correct option is Rajasthan.
Explanation
Sariska Wildlife Sanctuary is a prominent protected area and Tiger Reserve, recognized for its biodiversity and conservation efforts under Project Tiger.
Detailed Analysis:
- Location: The sanctuary is located in the Alwar district of Rajasthan.
- Historical Context: It was established as a Wildlife Sanctuary in 1955 and was declared a Tiger Reserve in 1978. It holds the distinction of being the first reserve in the world to successfully relocate tigers.
- Ecological Features: Nestled in the Aravalli Hills, the sanctuary features scrub-thorn arid forests, dry deciduous forests, grasslands, and rocky hills. It is home to the Royal Bengal Tiger, leopard, jungle cat, and various other species.
Key Takeaway: The Sariska Wildlife Sanctuary is situated in the Alwar district of Rajasthan.