The Videha Kingdom was later incorporated into the Vajji confederacy, which had its capital in the city of Vaishali, which is also in Mithila. Earlier, the Saharsa district was part of the Munger and Bhagalpur districts. On 1 April 1954 it was made a district of its own. It was also made headquarters 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, including Raghopur, Chhatapur, Basantpur and Nirmali, which were previously under Supaul subdivision of the district. Two new districts, Madhepura and Supaul, were formed from Saharsa district on 30 April 1981 and 1991. Saharsa district now consists of two subdivisions, Saharsa Sadar and Simri Bakhtiarpur. The district consists of 10 development blocks and anchals each. From the archaeological evidences, it is proved that it was the major city during Guptas Period.