Concept:Rourkela Steel Plant is located in the state of Odisha.Explanation:Rourkela Steel Plant is situated in Rourkela city of Odisha.It is one of India's major steel plants and is operated by Steel Authority of India Limited (SAIL).It was set up with technical collaboration from West Germany and started production in 1959.Among the given options, Odisha is the correct state.Answer:Option C: Odisha.