Bansagar Dam is an inter-state multipurpose large river basin project constructed at a place called Devalond in Shahdol district of Madhya Pradesh state. The dam is built on the Son River (Sonbhadrashila) in Madhya Pradesh. Devalond is located on the Rewa-Shahdol road, about 56 km from Rewa. The height of this dam is 67 meters. We have surveyed the villages which are partially or completely affected by the Bansagar dam, as any development program, as we know, has two stages of construction. There are positive as well as negative effects, so we survey the affected area to compare the pre and post position of the submerged area according to the hypothesis or previous assumption.