1. Indian Oil Corporation Ltd., Delhi 2. Gas Authoristy of India Ltd., Delhi 3. Tata Chemicals and Fertilisers Ltd., Babrala 4. National Fertilisers Ltd., Guna 5. Indian Oil Corporation, Calcutta 6. Larsen and Toubro Ltd., Haldia 7. Haldia Petrochemicals Ltd., Haldia 8. Nagarjuna Fertilizers and Chemicals Ltd., Kakinada 9. Madras Refineries Ltd., Chennai 10. Tamilnadu Petro Products Ltd., Madras 11. Tata Hydro Electric Power Co. Ltd., Mumbai 12. Oil & Natural Gas Corpn., Uran 13. Bharat Petroleum Corpn. Ltd., Mumbai 14. Municipal Corpn. of Greater Mumbai, Mumbai 15. Indian Oil Corpn. Ltd., Viramgam 16. Indian Oil Corpn. Ltd., Rajkot 17. Gujarat Gas Corpn. Ltd., Baroda 18. Indian Oil Corpn. Ltd., Bareja 19. Reliance Industries Ltd., Hazira