The largest district of Assam, Karbi Anglong occupies an area of 10,434 sq kms, comparatively equivalent to the island of Hawaii. This large and charming hill district in the centre of Assam with its diversely rare flora and fauna has remained untouched and undiscovered. Diphu is the head-quarters of Karbi Anglong district, located 172 kms from Guwahati. The nearest airport is Dimapur in Nagaland 54 km away from Diphu. The district capital also has a railway station.
The district has three sub-divisions: Diphu, Hamren and Bokajan. The population of the district is predominantly tribal. The Karbis are the major local tribe who gives the district its present name. The Karbis are divided into three groups namely 'Chinthong', 'Ronghang' and 'Amri'.