A brick built Buddhist monastic complex is completely exposed after archaeological excavations during the years 1998-99 to 2000-2001 at Shyam Sundar Tilla. The plan of the central shrine is cruciform with pancharatha order. Its upper part is totally collapsed. The central sanctum of the Buddhist temple is attached in four cardinal directions. The plan of each of the subsidiary shrine is square. Besides, there is a wide Pradakshinapatha i.e, the circumambulatory path with four subsidiary shrines running all around the shrines. The exterior of the basement wall is adorned with terra-cotta plaques of Buddha in dhyana mudra, other Buddhist deities, Brahmanical figures including Ganesa &  Kartikeya, kirtimukha, dancers, musicians, archers, warriors, Gandharvas, kinnaras, ducks, peacocks, parrots,eagle, snakes, fish, makara, horse, elephant, tiger, lion, deer, bull, buffalo, monkey, goat, mythical animal figurine, sunflower, lotus, Kalasa etc.

Besides, a large number of terracotta plaques have been recovered during excavation. Among the findings of stone sculptures the life size figure of Avalokitesvara flanked by Tara and Hayagriva is noteworthy. Stylistically the remains can be dated to circa 9th-10th century AD.