Maharatna

• BHEL
• BPCL
• COAL INDIA LIMITED
• GAIL
• HPCL
• INDIAN OIL
• NTPC
• ONGC
• SAIL
• POWER GRID CORPORATION OF INDIA
• REC LIMITED
• HINDUSTAN AERONAUTICS LIMITED (HAL)
• OIL INDIA LIMITED (OIL)
• POWER FINANCE CORPORATION(PFC)