The Rang Ghar is a 2 storeyed constructing which as soon as served because the royal sports-pavilion where Ahom kings and nobles have been spectators at games like buffalo fights and different sports activities at Rupahi Pathar pathar which means field in Assamese especially during the Rongali Bihu pageant within the Ahom capital of Rangpur. It is three km far from the center of the Sivasagar Town.
Situated via the side of the Assam Trunk Road, it lies to the northeast of the Rangpur Palace, a seven storied royal complex comprising the Talatal Ghar and the Kareng Ghar. Said to be one of the oldest surviving amphitheaters in Asia, the building changed into first constructed in the course of the reign of Swargadeo Rudra Singha with bamboo and wood. It became later rebuilt with brick by way of Swargadeo Pramatta Singha in AD 1744 to 1750. The roof of the Rang Ghar is shaped like an inverted royal Ahom lengthy boat. The base of the monument has a chain of arched entrances; even as atop the roof sits a decorative pair of carved stone crocodiles.