Katihar, once known as Saifganj, is a small town in north-eastern Bihar. The town serves as the district headquarters of Katihar District and is situated on the banks of the Mahananda River, a tributary of the Ganges. Katihar is mainly engaged in agricultural trade and is 175 km east of Patna.
The nearest airport is at Patna. Katihar Railway Station is a major rail junction in Bihar.