1. National Thermal Power Corporation Ltd. (NTPC)
2. The Tata Iron & Steel Company Ltd. (TISCO)
3. National Fertilizer Ltd. (NFL)
4. Steel Authority of India Ltd. (SAIL)
5. Reliance Industries Ltd. (RIL)
6. Reliance Petorleum Ltd. (RPL)
7. Indian Petrochemicals Corporation Ltd. (IPCL)
8. Fertilizers and Chemicals Travancore Ltd. (FACT)
9. Shipping Corporation of India Ltd. (SCI)
10. Indian Oil Corporation Ltd. (IOCL)
11. Hindustan Petroleum Corporation Ltd. (HPCL)
12. Calcutta Electric Supply Corporation Ltd. (CESC)
13. Indo - Gulf Ltd.
14. Tata Chemicals Ltd.
15. West Bengal State Electricity Board (WBSEB)
16. Maharashtra State Electricity Board (MSEB)
17. Madhya Pradesh Electricity Board (MPEB)
18. Indian Aluminium Ltd (INDAL)
19. Gujarat Narmada Valley Fertilizer Company Ltd. (GNFC)
20. Nuclear Power Corporation (NPCIL)
21. JSW Steel Limited
And many more ........