fort, enormous pieces of work of art like potteries, terracotta figurines, terracotta plaques and decorative tiles were recovered. Fabricated from the burnt bricks gave this fort an impressive and remarkable top view and thus explores the dexterity of people of ancient era. This fort can still be signified as an astonishing work of art. The city's area is 10 square km. It is surrounded by a wall 4.5 meters high and 6 meters wide made using granite stone(6-9 courses) and bricks on the east, west and south directions. In the north, the Mishmi hills provided a natural barrier. Although very less excavation has been carried out by the Arunachal government, preliminary excavations have revealed three tanks and two gates in the eastern and western directions. The Bhismaknagar central complex extended over an area of 1860 square meters and displays three halls, six ingresses and two extension rooms. There is also a 2 meters high stone wall inside the complex. The architecture of the fort displays the medieval culture. While quarrying the fort the enormous pieces of work of art like potteries, terracotta figurines, terracotta plaques and decorative tiles were preserved. Rukmini Nagar In the hills north of Roing lie scattered some old brick structures, mainly between the Chidu and Chimri villages situated at an altitude of about 305 m. The local people, the Idus, were desirous of giving an Idu word to the name, and hence it came to be called Rukmini Nati (nati—the Idu word for bricks). An exploration-cum-excavation work, undertaken by the Research Department of the Government of Arunachal Pradesh, to study the ruins, has thrown some light on the antiquities. In course of the progress of work, which continued from January 1973 to April 1974, excavation of two mounds at Chimri, II km from Roing, unearthed two rooms, 10x10 m and 10x12 m respectively built on a slope, at a distance of 14 m from each other. The contents dug out from inside the walls of the rooms were of river-borne materials, a fact which suggests that they were destroyed by floods. The potsherds resembling those of Bhismaknagar in shape, fabric and technique that were unearthed bear ample evidence to the extension to this area of the same culture as of Bhismaknagar. The other archaeological sites in this area are located (I) near Chidu Inspection Bungalow, (2) at Cheko Nati between Chidu and Chimri and (3) in