Upper Assam division

Upper Assam division or Ujanidesh is an administrative division of the state of Assam comprising the undivided Lakhimpur and Sivasagar (previously, Sivasagar) districts, of the upper reaches of the Brahmaputra Valley. The other divisions are: Lower Assam, North Assam and Hills and Barak Valley. The division is under the jurisdiction of a Commissioner.³

Consisting of 7 districts initially, the Upper Assam division now contains 10 districts, that includes Sivasagar, Jorhat, Dibrugarh, Dhemaji, Golaghat, Charaideo, Lakhimpur, Majuli, Biswanath, and Tinsukia. While Charaideo and Majuli are the newest districts that were raised to district status in 2016, Golaghat and Tinsukia are the biggest districts in terms square kilometre area in the region, raised to the district status in the years of 1987 and 1989 respectively.

Jorhat, Golaghat and Dibrugarh are also the oldest recognised and constantly inhabited urban centres (municipal areas) in the region based on the earliest years of formation of the civic bodies, constituted before the Indian independence of 1947. Jorhat is the Second most developed city of Assam. On 26 January 2025 Honourable Chief Minister of Assam Sri Himanta Biswa Sarmah declared Dibrugarh as Second Capital of Assam and now it serves as the headquarter of upper Assam division. Other cities of upper Assam are Tinsukia, Sivasagar, Lakhimpur, Dhemaji etc.

An extended list of Upper Assam region also includes the districts of Sonitpur. The region is the most productive part of the state of Assam, which is rich in natural resources like coal, oil and natural gas as well as tea plantations.