Basantpur Assembly constituency

Basantpur  was a Bihar Legislative Assembly Constituency in Siwan district in the Indian state of Bihar. This Constituency was till 2010. In 2010, two blocks of Basantpur constituency were merged with Goreyakothi block and a new constituency was formed. Satyadeo Prasad Singh was Mla from this constituency From 2000 to 2005 and Manik Chandra Ray became Mla in 2005. From 1985 to 2010 the Main Contestors of this Constituency were Satyadeo Prasad Singh Of BJP and Manik Chandra Rai of RJD.

Overview
It was part of Siwan Lok Sabha constituency.

As a consequence of the orders of the Delimitation Commission of India, Basantpur Assembly constituency ceased to exist in 2010.