Tinsukia is a city in the Indian state of Assam in the district of Tinsukia. According to the official census in 2011 there were about 125,000 people in Tinsukia. The name of Tinsukia is derived from a lake in the city area, the Tinkunia Pukhuri Lake. The largest train station in Assam is located in the town of Tinsukia, the ( " Brahmaputra Mail" ) is directly connected to the capital New Delhi by an express train. In the area of Tinsukia are oil fields, coal inventories ( Makum and Dilli - Jeypore / " Dilli Colliery " ) and tea plantations.

The Digboi refinery, one of the largest and oldest oil refineries in Asia, is located in the district of Tinsukia. Here crude oil was promoted as the 19th century. The Digboi Club has a golf course with 18 holes.