Biswanath is identified as a part of the ‘Soumarpeetha’ of ancient Kamarupa kingdom. Present Biswanth area is a former part of Sonitpur district, well known for Da-Parbatia, Agnigarh, Bamuni Hills, Nagsankar temple. Biswanath is a centre of cultural development in Assam from the early times. The Bamgoan ruins dating back to c 800-900 CE provide evidence of brick fragments depicting birds, floral designs, human and animal figures, bricks used as corner pieces and other terracotta art objects to understand the cultural development of the area. Biswanath is very much important from historical point of view. The temple ruins and findings of the area itself describe the importance of the area. The history of Biswanath and its nearby area is well known after the expansion of Ahom kingdom to central Assam. In this paper an attempt is made to describe the iconographic features of the sculptures which are found in the area.