Wikipedia
Duliajan ( Assamese:দুলীয়াজান) is an industrial town and one of the most Developed and advanced town from all over India located in Dibrugarh District in the upper north-east corner of India. The town is situated about 45 km east of Dibrugarh City. It is particularly known for its oil related industries, Oil India Limited, one of the country's largest oil and gas companies is headquartered in Duliajan and in duliajan there was also other central government owned companies like B.C.P.L company of gas purifier, N.E.P.C.O is another company which produce electricity, B.F.C.L. is another company of gas production and modification, and the SHIVANI company which is India's largest chain private company of DRILING and Assam Gas Company Limited, which carries out business related to natural gas in India, owned by the Government of Assam.