The Dibrugarh Commissionerate has vast geographical jurisdiction. The entire state of Arunachal Pradesh, the districts of Tinsukia, Dibrugarh, Sivasagar, Jorhat, in the state of Assam and the state of Nagaland (except the Dimapur and Kohima district ) falls under Dibrugarh Commissionerate.
Website of Central Excise Dibrugarh provides info about history and jurisdiction of Dibrugarh, Jorhat, Tinsukia and Digboi Division holiday list, officers, tenders etc
Web : http://cexcusner.gov.in/