Correct option is C
Rourkela, located in Odisha, is well-known for its Rourkela Steel Plant, which was established with German collaboration, and is also recognized for its contribution to the fertilizer industry. The steel plant is one of the largest in India and is operated by Steel Authority of India Limited (SAIL). Apart from steel, Rourkela has a significant presence in the chemical and fertilizer industries, contributing to India's industrial development.