Maharatna Scheme was introduced for Central Public Sector Enterprises (CPSEs), with effect from 19th May, 2010, in order to empower mega CPSEs to expand their operations and emerge as global giants. List of 7 Maharatna, 17 Navratna and 72 Miniratna Companies in India (Status as on 26 October, 2014) —

Maharatna Companies
1. Bharat Heavy Electricals Limited
2. Coal India Limited
3. GAIL (India) Limited
4. Indian Oil Corporation Limited
5. NTPC Limited
6. Oil & Natural Gas Corporation Limited
7. Steel Authority of India Limited

Navratna Companies
1. Bharat Electronics Limited
2. Bharat Petroleum Corporation Limited
3. Container Corporation of India Limited
4. Engineers India Limited
5. Hindustan Aeronautics Limited
6. Hindustan Petroleum Corporation Limited
7. Mahanagar Telephone Nigam Limited
8. National Aluminium Company Limited
9. National Buildings Construction Corporation Limited
10. NMDC Limited
11. Neyveli Lignite Corporation Limited
12. Oil India Limited
13. Power Finance Corporation Limited
14. Power Grid Corporation of India Limited
15. Rashtriya Ispat Nigam Limited
16. Rural Electrification Corporation Limited
17. Shipping Corporation of India Limited

Miniratna - I Companies
1. Airports Authority of India
2. Antrix Corporation Limited
3. Balmer Lawrie & Co. Limited
4. Bharat Coking Coal Limited
5. Bharat Dynamics Limited
6. BEML Limited
7. Bharat Sanchar Nigam Limited
8. Bridge & Roof Company (India) Limited
9. Central Warehousing Corporation
10. Central Coalfields Limited
11. Chennai Petroleum Corporation Limited
12. Cochin Shipyard Limited
13. Dredging Corporation of India Limited
14. Kamarajar Port Limited
15. Garden Reach Shipbuilders & Engineers Limited
16. Goa Shipyard Limited
17. Hindustan Copper Limited
18. HLL Lifecare Limited
19. Hindustan Newsprint Limited
20. Hindustan Paper Corporation Limited
21. Housing & Urban Development Corporation Limited
22. India Tourism Development Corporation Limited
23. Indian Rare Earths Limited
24. Indian Railway Catering & Tourism Corporation Limited
25. IRCON International Limited
26. KIOCL Limited
27. Mazagaon Dock Limited
28. Mahanadi Coalfields Limited
29. Manganese Ore (India) Limited
30. Mangalore Refinery & Petrochemical Limited
31. Mishra Dhatu Nigam Limited
32. MMTC Limited
33. MSTC Limited
34. National Fertilizers Limited
35. National Seeds Corporation Limited
36. NHPC Limited
37. Northern Coalfields Limited
38. North Eastern Electric Power Corporation Limited
39. Numaligarh Refinery Limited
40. ONGC Videsh Limited
41. Pawan Hans Helicopters Limited
42. Projects & Development India Limited
43. Railtel Corporation of India Limited
44. Rail Vikas Nigam Limited
45. Rashtriya Chemicals & Fertilizers Limited
46. RITES Limited
47. SJVN Limited
48. Security Printing and Minting Corporation of India Limited
49. South Eastern Coalfields Limited
50. State Trading Corporation of India Limited
51. Telecommunications Consultants India Limited
52. THDC India Limited
53. Western Coalfields Limited
54. WAPCOS Limited

Miniratna - II Companies
1. Bharat Pumps & Compressors Limited
2. Broadcast Engineering Consultants (I) Limited
3. Central Mine Planning & Design Institute Limited
4. Central Railside Warehouse Company Limited
5. Ed.CIL (India) Limited
6. Engineering Projects (India) Limited
7. FCI Aravali Gypsum & Minerals India Limited
8. Ferro Scrap Nigam Limited
9. HMT (International) Limited
10. HSCC (India) Limited
11. India Trade Promotion Organisation
12. Indian Medicines & Pharmaceuticals Corporation Limited
13. M E C O N Limited
14. Mineral Exploration Corporation Limited
15. National Film Development Corporation Limited
16. National Small Industries Corporation Limited
17. P E C Limited
18. Rajasthan Electronics & Instruments Limited