Supaul is a city located in the northeastern part of Bihar and serves as the district headquarters of Supaul district. It lies in the Koshi river basin, an area known for fertile soil as well as frequent flooding. Agriculture is the mainstay of the local economy, with crops such as rice, maize, and wheat widely cultivated. Supaul functions as an important administrative and commercial center for the surrounding rural region. The city has good road and rail connectivity, linking it to major towns in Bihar and nearby Nepal. Local markets support trade in agricultural produce and daily goods. Cultural life in Supaul reflects strong Maithili traditions and festivals. Supaul continues to grow steadily as a key urban center of the Koshi region.