(I) OIL INDIA LIMITED.
DULIAJAN / RAJASTHAN / GUWAHATI / KAKINADA
(II) BHARAT HEAVY ELECTRICALS LTD.
BHOPAL / RAMACHANDRAPURAM
(III) INDIAN OIL CORPORATION LIMITED.
GUJARAT REFINERY / MATHURA REFINERY / GUWAHATI REFINERY /
BARAUNI REFINERY / PANIPAT REFINERY / HALDIA REFINERY /
DIGBOI REFINERY / PARADIP REFINERY / BONGAIGAON REFINERY
(IV) NALCO, DAMANJODI, ANGUL
(V) NUMALIGARH REFINERY LIMITED
(VI) HINDUSTAN PETROLEUM CORPORATION LTD.,
MUMBAI / VISAKHAPATNAM / MANGALORE
(VII) INDIAN RAILWAYS: NORTHEAST FRONTIER RAILWAY / EASTERN RAILWAY / SOUTH EASTERN RAILWAY / NORTHERN RAILWAY / SOUTH WESTERN RAILWAY / WEST CENTRAL RAILWAY / CENTRAL RAILWAY / NORTH WESTERN RAILWAY / SOUTHERN RAILWAY / INTEGRAL COACH FACTORY, CHENNAI / NORTH CENTRAL RAILWAY / NORTH EASTERN RAILWAY
(VIII) WESTINGHOUSE SAXBY FARMER LIMITED., TITAGARH, KOLKATA