Chhapra is a city in the Indian state of Bihar and the administrative center of the Saran district. It is located near the confluence of the Ghaghara and Ganges rivers. When the Dutch, French, Portuguese, and English erected saltpeter refineries in the area in the 18th century, Chhapra gained significance as a river-based market. In 1864, it was incorporated as a municipality. Chhapra Junction is the main railway station. Ambika Bhavani is a well-known shakti peeth temple in Chhapra.