Earlier Saharsa district was part of Bhagalpur and munger district, in 1954 it was made a district. It was also made headquarter of Kosi Division on 2 October 1972, comprising Saharsa, Purnia and Katihar district, with its headquarters at Saharsa. Similarly a new Civil Sub-Division Birpur was created on 1 December 1972, consisting of 24 development blocks viz. Raghopur, Chhatapur, Basantpur and Nirmali which were previously under Supaul subdivision of this district. Two new districts Madhepura & Supaul have been formed from Saharsa district on 30 April 1981 and 1991. Saharsa district now consists of two subdivisions, viz. Saharsa Sadar and Simri Bakhtiarpur. The district consists of 10 development blocks and anchals each.
Saharsa was created on 1 April 1954. Formerly it had no independent status and parts of Saharsa were included in the old districts of Munger & Bhagalpur A large parts of the district in the past was subjected to annual floods and inundation by a host of rivers originating from the Himalayas. The sub terai was noted for rice cultivation before it was subjected to the vagaries of the unpredictable Koshi.
The district has been largely influenced by its geography. Whatever humans of historically important sites that may have existed here have been virtually started by the repeated flooding at the koshi river during the last half century or so. With the efforts of some early Europeans however, some important historical objects or landmarks have been preserved in a few places and it is on the basis of these that some kind of a connected account of the early history of the district can be constructed.
Ancient Period
In ancient times Vaishali was the strongest republic in North-Bihar and beyond that lay the famous territory of Anguttarap. There was a small Janpad, named Apna, in Anguttarap and it included a portion of the district of Shaharsa. Although
