Sariska wildlife sanctuary is located in the state of Rajasthan.

- Located in Rajasthan:
Sariska wildlife sanctuary is situated in the Alwar district of the Indian state of Rajasthan. It is approximately 107 kilometers away from the capital city of Jaipur. The sanctuary is nestled in the Aravalli hills, which adds to its scenic beauty and natural appeal.

- Importance of Sariska wildlife sanctuary:
1. Biodiversity: Sariska wildlife sanctuary is known for its rich biodiversity and serves as a habitat for various species of animals, birds, and plants. It is home to several endangered species, including the Bengal tiger, Indian leopard, Indian jackal, striped hyena, and many more.

2. Tiger Reserve: Sariska wildlife sanctuary is also a designated tiger reserve. It was declared as a tiger reserve in 1978 under the Project Tiger initiative aimed at conserving the dwindling tiger population in India. The sanctuary plays a crucial role in the conservation of tigers and their habitat.

3. Historical significance: The sanctuary is not only known for its natural beauty but also for its historical significance. It houses the ruins of the ancient Kankwadi Fort, which was built by the Mughal emperor Aurangzeb. The fort offers a glimpse into the region's historical past and attracts tourists interested in history and architecture.

4. Safari and tourism: Sariska wildlife sanctuary offers various safari options, including jeep safaris and canter safaris, allowing visitors to explore the sanctuary and witness its diverse wildlife. The beautiful landscapes and the chance to spot tigers and other animals make it a popular tourist destination.

- Conclusion:
Sariska wildlife sanctuary, located in the state of Rajasthan, is a significant wildlife reserve known for its biodiversity, tiger conservation efforts, historical ruins, and tourism opportunities. It attracts nature enthusiasts, wildlife lovers, and history buffs from all over the country.

Sariska Wildlife Sanctuary Location:
The Sariska Wildlife Sanctuary is located in the state of Rajasthan, India.
Explanation:
Here is a breakdown of the answer in bullet points:
- The Sariska Wildlife Sanctuary is a popular wildlife destination in India.
- It is situated in the Alwar district of the state of Rajasthan.
- The sanctuary is located approximately 107 kilometers away from the capital city of Jaipur.
- Sariska Wildlife Sanctuary is spread across an area of about 866 square kilometers.
- It is surrounded by the Aravalli hills, which add to the scenic beauty of the sanctuary.
- The sanctuary is home to various species of flora and fauna, including the Royal Bengal Tiger.
- It was declared a wildlife sanctuary in 1955 and later became a part of the Tiger Reserve Project in 1978.
- Sariska Wildlife Sanctuary attracts a large number of tourists and wildlife enthusiasts who come to explore its diverse wildlife and natural beauty.
So, the correct answer to the question is option A: Rajasthan.