NMDC Steel Limited is a Govt. Company under administrative control of Ministry of Steel , Govt. of India. The shares of the Company are listed on BSE, NSE and Calcutta Stock Exchange. Welcome to NMDC Steel Limited ...Investors Information NMDC Steel Ltd is a leading government-owned steel producer in India, operating the 3 MTPA Nagarnar plant to boost self-reliant industrial growth. National Mineral Development Corporation ( NMDC ), a Navratna Public Sector Enterprise under the Ministry of Steel , Government of India is the single largest producer of iron ore in India. It owns and operates iron ore mines in Chhattisgarh and Karnataka and has its registered office at Hyderabad, Telangana. [1]