Korba is the 41st largest Hindi speaking city of India with a total population of 3.6 Lakh. Major employment in Korba is in Mining, Aluminum and in Agriculture industry. Korba has 74% Agriculture workers, 24% Industry and other workers and 2% Household workers. Korba is a good agriculture belt because of the Hasdeo River and its tributaries Gagechorai, Tan and Ahiran. Korba is the power capital of Chhattisgarh State. It was accorded a fullfledged revenue district with effect from 25th May, 1998. The district comes under Bilaspur Division and is inhabited mainly by tribals including the protected tribe Korwas.