Sibsagar district, formerly known as Sivasagar, is one of the 32 districts of Assam state in Northeast India. Sivasagar town is the administrative headquarters of this district. This historic place is also known for its rich and diverse biodiversity.The districts cover an area of 2668 square kilometres as against total area of 78438 square kilometres of Assam as per census of 2001. The district comprises two sub-divisions – Sivasagar and Nazira. The district of Sivasagar lies between 26.45°N and 27.15°N latitudes and 94.25°E and 95.25°E longitudes. The district is bounded by the Brahmaputra River on the north, Nagaland on the south, the Charaideo district on the east and the Jhanji River on the west. The Sivasagar district has acquired its distinct identity due to the co-existence of different races, tribes, languages and cultures.