Doodlebrary
| SR NO | PSU | PROFIT IN RS. CRORE (2020-21) |
| 1. | Indian Oil Corporation Ltd. | 21,836 |
| 2. | ONGC Ltd | 13,445 |
| 3. | NTPC Ltd | 14,969 |
| 4. | Coal India Ltd. | 16,700 |
| 5. | Power Grid Corporation of India Ltd. | 9,939 |
| 6. | Bharat Petroleum Corporation Ltd. | 7,132 |
| 7. | Power Finance Corporation Ltd. | 6,953 |
| 8. | Gail (India) Ltd. | 6,142 |
| 9. | Bharat Sanchar Nigam Ltd. | 6,040 |
| 10. | Hindustan Petroleum Corporation Ltd. | 6,029 |