The Rang Ghar meaning `House of Entertainment`. it is a two-storeyed building which once served as the royal sports-pavilion where Ahom kings and nobles were spectators at games like buffalo fights and other sports at Rupahi Pathar pathar meaning `field` in Assamese - particularly during the Rongali Bihu festival in the Ahom capital of Rangpur. made of wood and stone. In 1751 Sunenphaa, son of Sukhrungphaa, constructed the brick wall of about 5 kilometres 3.1 mi in length surrounding the Garhgaon Palace and the masonry gate leading to it.After the destruction of the old palace it was rebuilt around 1752 as the present seven-storied structure by Suremphaa reign: 1751-1769.