The correct option is C Burnpur
Established as an industrial enterprise in 1918, the steel plant called Indian Iron and Steel Company (IISCO) produced iron from an open-top blast furnace at Hirapur (later to be called Burnpur) in West Bengal for the first time in 1922. This full-fledged integrated steel plant is one of India’s oldest. The plant manufactures a range of products, over some of which it holds exclusive market dominance. Iron and steel produced by it has been acknowledged as being of the finest quality.