The Bisra Stone Lime Company Limited(BSLC) was incorporated on 1st day of October ,1910.It was nationalised by Government of India through the Bird & Company Ltd.(Acquition and Transfer of Undertaking and other Properties) Act ,1980 (Act No: 67 of 1980) in the year 1980 and it became a Schedule-C PSU w.e.f 19th March,2010. It is a subsidiary company of Eastern Investments Limited (EIL) which is a subsidiary of RINL (Rashtriya Ispat Nigam Limited) w.e.f 5th January, 2011. The paid up capital of BSLC is Rs. 87.29 crores consisting of 8,72,86,252 shares of Rs. 10 each. The company is listed at Calcutta Stock Exchange. The main activities of the company is mining and marketing of limestone and dolomite. The mines are located at Birmitrapur in the district of Sundargarh, Orissa. The BSLC is having reserves of about 287 million tons of dolomite & 367 million tons of limestone. The main buyers of BSLC products (Dolomite & Limestone) are Steel Authority of India Limited (SAIL) Steel Plants. The company has received Environment Clearance (EC) for enhancing production to 5.26 Million Tons prayer of Dolomite and Limestone. The Company is in the process of drawing up plan for improving the business the business of the Company. Present manpower of the company is 766.