Umesh Chandra

The Bisra Stone Lime Co. Ltd. engages in mining and marketing of limestone and dolomite. The company is based in Kolkata, India. The Indian company is ultimately controlled by the Government of India. The Bisra Stone Lime Co. was acquired by Orissa Minerals Development Co., Ltd. from Eastern Investments Ltd. on July 25, 2012.

Founded in 1927, Eastern Investments Ltd. is a subsidiary of ArcelorMittal Nippon Steel India Ltd. that explores and mines for iron. The company is based in Kolkata, India.

Indian Institute of Metals provides metallurgy materials engineering services. The firm's activities include mineral beneficiation, extraction, fabrication, heat treatment, finishing as well as practical and theoretical aspects of metallurgy of all ferrous and non-ferrous metals and alloys. The company was founded by Dara P. Antia in 1946 and is headquartered in Kolkata, India.

Rashtriya Ispat Nigam Ltd. manufactures, exports and markets steel products. Its products include wire rods, rounds, reinforcement bars, structural, plain rounds and forged rounds. The company was founded on February 18,1982 and is headquartered in Visakhapatnam, India.