Saran division is an administrative geographical unit of Bihar state of India. Chhapra is the administrative headquarters of the division. Currently (2005), the division consists of Saran district, also called Chhapra District, Siwan district, Gopalganj district.This is the only division in Bihar, in which all the districts share a boundary with another state; Uttar Pradesh. This region was Ruled by Royal Family of Hathwa Raj.