Hastinapur Wildlife Sanctuary is located in Uttar Pradesh.

Explanation:
The Hastinapur Wildlife Sanctuary is a protected area located in the Meerut and Bijnor districts of Uttar Pradesh, India. It is spread over an area of approximately 2,073 square kilometers and is one of the largest wildlife sanctuaries in the state.

- Importance of Hastinapur Wildlife Sanctuary:
- Biodiversity: The sanctuary is known for its rich biodiversity and is home to a wide variety of flora and fauna. It provides a habitat for several endangered and vulnerable species.
- Elephant Conservation: Hastinapur Wildlife Sanctuary is an important area for the conservation of elephants. It serves as a crucial corridor for their movement between the Rajaji National Park in Uttarakhand and the Buxa Tiger Reserve in West Bengal.
- Avian Diversity: The sanctuary is also a haven for birdwatchers, as it attracts a large number of migratory and resident bird species. More than 350 species of birds have been recorded in the sanctuary, including the critically endangered white-rumped vulture.
- Cultural Significance: The sanctuary is named after the ancient city of Hastinapur, which is believed to be the birthplace of the Pandavas and Kauravas from the Mahabharata epic. It is considered a sacred site by many Hindus and attracts pilgrims as well.

- Flora and Fauna:
- Vegetation: The sanctuary is characterized by a diverse range of vegetation types, including dry deciduous forests, grasslands, and wetlands. It supports a variety of plant species such as khair, sissoo, bamboo, and grasses.
- Wildlife: The sanctuary is home to a wide range of wildlife species, including elephants, tigers, leopards, sambar deer, chital, wild boar, Indian hare, and several species of reptiles and amphibians. It is also known for its rich fish diversity in the Ganga and Yamuna rivers that flow through the sanctuary.
- Avifauna: As mentioned earlier, the sanctuary is a paradise for birdwatchers. Some of the bird species found here include the painted stork, black-necked stork, sarus crane, white-tailed lapwing, and several species of ducks and geese.

In conclusion, the Hastinapur Wildlife Sanctuary is located in the state of Uttar Pradesh. It is a significant protected area known for its biodiversity, elephant conservation efforts, avian diversity, and cultural significance.