New Bongaigaon (/bɒŋˈɡaɪɡaʊ/; is a city in the Indian state of Assam. The City included or new part of municipal board of Bongaigaon District. The town, divided into two parts – Old Bongaigaon and New Bongaigaon, is situated 180 kilometres (112 mi) north west of Guwahati. To meet the demands of Bodos of Assam, Bongaigaon was divided up to give way for Chirang district. Bongaigaon has a major petrochemical industry, the Indian Oil Corporation Limited (IOCL BGR).