Table
Public Sector Undertakings & Other Organisations
| Company Name | Short form | D.O.E. | HQ | Business | Status |
|---|---|---|---|---|---|
| National Thermal Power Corporation | NTPC | 1975 | New Delhi | Generation of electricity and allied activities | Maharatnas |
| Oil and Natural Gas Corporation | ONGC | 1956 | Vasant Kunj, New Delhi | Largest oil and gas exploration and production company in India | Maharatnas |
| Steel Authority of India United | SAIL | 1954 | New Delhi | Steel making Company | Maharatnas |
| Bharat Heavy Electrical Limited | BHEL | 1964 | New Delhi | An Engineering and Manufacturing based company | Maharatnas |
| Indian Oil Corporation Limited | IOCL | 1959 | New Delhi | Largest Commercial oil Company in India | Maharatnas |
| Hindustan Petroleum Corporation Limited | HPCL | 1974 | Mumbai | Operates the largest lubricant refinery in India produce tube base oil | Maharatnas |
| Coal India Limited | CIL | 1975 | Kolkata | Largest Coal producting company in the World | Maharatnas |
| Gas Authority of India Limited | GAIL | 1984 | New Delhi | Natural gas processing and distribution company in India | Maharatnas |
| Bharat Petroleum Corporation Limited | BPCL | 1976 | Mumbai | Operates two large oil and gas refinery in Kochi and Mumbai | Maharatnas |
| Power Grid Corporation of India | POWER GRID | 1989 | Gurugram, Haryana | Transmission of Power | Maharatnas |
| Bharat Electronics Limited | BEL | 1954 | Bengaluru | Aerospace and defence company | Navratana |
| Container Corporation of India | CONCOR | 1988 | Mumbai | Cargo Carrier, Terminal operator, warehouse operator | Navratana |
| Hindustan Aeronautics Limited | HAL | 1940 | Bengaluru | Manufacture aircraft engines spare parts and other materials | Navratana |
| National Aluminium Company | NALCO | 1981 | Bhubaneswar | Operation in mining, metal and power | Navratana |
| Oil India Limited | OIL | 1959 | Duliajan, Assam | Exploration, developments production of crude oil and natural gas | Navratana |
| Airport Authority of India | AAI | 1995 | New Delhi | Creating upgrading maintening and managing civil aviation infrastructure | Miniratna-I |
| Bharat Dynamics Limited | BDL | 1970 | Hyderabad, Telangana | Manufacturing base for guided weapns system | Miniratna-I |
| Garden Reach Ship-builders & engineering | GRSE | 1884 | Kolkata | Builds and repair commercial and naval vessels | Miniratna-I |
