Answer: Tharu and Urav
Notes: The Valmiki Tiger Reserve, located near the Nepal border in Bihar's West Champaran district, is home to the tribes of Tharu and Urav. The reserve is covered by an age-old forest spread across about 900 square kilometers and is rich in flora and fauna. It hosts tigers, leopards, and several herbivorous species in their natural habitat. The cultures of the Tharu and Urav communities provide valuable learning opportunities.
