| Asian Brown Boveri Limited |
| Bharat Aluminium Concern Limited |
| Bharat Earth Movers Limited, Mysore |
| Bharat Heavy Electricals Limited |
| Centre For Advanced Technology |
| Central Power And Works Department, Delhi |
| Central Railway, Mumbai |
| Chennai Port Trust |
| Chhukha Hydro Power Corporation, Limited |
| Dabur India Limited, Baddi |
| Eastern Railway |
| Goetze (India) Limited |
| Gujarat Mineral Development Corporation, Limited |
| Hindustan Shipyard Limited, Visakhapatnam |
| Hindustan Zinc Limited |
| Indian Drugs And Pharmaceuticals Limited |
| Indian Iron And Steel Concern Limited |
| Indian Ordance Factory, Jabalpur |
| Indian Oil Corporation Limited, Mathura |
| Nathpa Jhakri Power Corporation Limited |
| National Aluminium Concern Limited |
| National Fertilizers Limited |
| National Hydro Electric Power Corporation Limited |
| National Thermal Power Corporation Limited |
| Neyveli Lignite Corporation, Neyveli |
| Northern Railway, New Delhi |
| Oil And Natural Gas Commission, Mumbai |
| Punj Lloyd Limited, New Delhi |
| Punjab State Electricity Board, Patiala |
| Rajasthan State Miens And Minerals Limited |
| Siemens Limited, New Delhi |
| Sirpur Paper Milsls Limited |
| South Central Railway, Secunderabad |
| South Eastern Railway, Kolkata |
| Sportaking India Limited, Ludhiana |
| Supreme Paper Mills Limited |
| Tamil Nadhu State Electricity Board |
| Tata Iron And Steel Company Limited, Jamshedpur, Orissa |