The correct answer is: A. Bailadila
Tata Iron and Steel Plant (TISCO), now Tata Steel, is an Indian multinational steel-making company based in Jamshedpur, Jharkhand. It is the largest steel producer in India and the second largest in Asia. The company was founded in 1907 by Jamsetji Tata.
TISCO receives iron ore from the Bailadila iron ore mines in Chhattisgarh. The Bailadila mines are the largest iron ore mines in India. They are operated by the National Mineral Development Corporation (NMDC).
The other options are incorrect. Keonjhar is a district in Odisha. Mayurbhanj is a district in Odisha. Singhbhum is a district in Jharkhand.