Hindustan Prefab Limited

Bharat Coking Coal Limited

Chairman: Shri Samiran Dutta Office Tel: +91 326 2230028,2230133-149 Office Address: Koyla Bhawan, P.O. BCCL Township, Koyla Nagar, Dhanbad – 826005 Fax: Email: Website: http://www.bcclweb.in/

Bharat Dynamics Limited

Chairman: Cmde Siddharth Mishra Office Tel: +91 40 24587466, 24587777 Office Address: Kanchanbagh, Hyderabad – 500058 Fax: +91 40 24340464 Email: Website: http://www.bdl-india.in/

Bridge and Roof Company (India) Limited

Chairman Shri Rajesh Kumar Singh Office Tel +91 33 22174469,22174473, 22174053 Office Address 5th Floor, Kankaria Centre, 2/1, Russel Street, Kolkata – 700071 Fax +91 33 22172106,22174519 Email http://www.bridgeroof.co.in Website bridge@bridgeroof.co.in