Northern Coal Fields Limited

Heavy Engineering Corporation Limited

Chairman DR. Nalin Shinghal Office Tel +91 651 2408485 Office Address Plant Plaza Road, P.O. Dhurwa, Ranchi – 834004 Fax +91 651 2408571 Email corpmktg@hecltd.com Website http://www.hecltd.com 

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

Tehri Hydro Development Corporation Limited

Chairman Shri R. K. Vishnoi Office Tel +91 135 2431517,2431523 Office Address Pragatipuram, By Pass Road, Rishikesh – 249201 Fax Email Website http://thdc.gov.in