DADELDHURA: One person was killed and three were injured in a bomb blast in Jogbudha -4, Dadeldhura on Tuesday night. Man Singh Bohara was killed and his wife Surma Devi Bohara including two children were injured in the incident. Their treatment is being done in a local hospital. According to the police, the bomb might have been left at the site during the ten years of Maoists insurgency.