Alamnagar (community development block) is one of the administrative divisions of Madhepura district in the Indianstate of Bihar. The block headquarters are located at a distance of 58 km from the district headquarters, namely, Madhepura. The name of Alamnagar is named for Shah Alamgir. Almost alls caste of Hindus and Muslims live together. Khara Budhama is also attached in Alamnagar vidhan shabha from udakishunganj. Khara is located 12 km from Alamnagar.