GAIL (India) Limited.

L&T
Hydrocarbon Engineering

TATA Projects Limited
 

Jindal Saw Limited
 

Kalpataru Power
Transmission Limited

NTPC Limited
 

Erko & Al Matar J.V.,
Al Athaiba, Oman

Punj Lloyd Limited

Combined Group Co.
for W.L.L. Kuwait

IL&FS Engineering and
Construction Company Limited

Ratnamani
Metals & Tubes Ltd.