The government owned corporations are termed as Public sector Undertakings (PSUs) in India. In a PSU majority (51% or more) of the paid share capital is held by central government or by any state government or partly by the central government and partly by one or more state governments. Several Public Sector Undertakings (PSUs) under the aegis of Government of India regularly provide tremendous employment opportunities in various technical and management areas.
As of Oct 2019, there are 10 Maharatnas, 14 Navratnas and 74 Miniratnas.
There are nearly 348CPSEs (central public sector enterprises) in total.
List of Maharatnas :
1.National Thermal Power Corporation (NTPC)
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2.Oil and Natural Gas Corporation (ONGC)
3.Steel Authority of India Limited (SAIL)
4.Bharat Heavy Electricals Limited (BHEL)
5.Indian Oil Corporation Limited (IOCL)
6.Hindustan Petroleum Corporation Limited (HPCL)
7.Coal India Limited (CIL)
8.Gas Authority of India Limited (GAIL)
9.Bharat Petroleum Corporation Limited (BPCL
10.Power Grid Corporation of India (POWERGRID)
List of Navratnas :
1.Bharat Electronics Limited (BEL)
2.Container Corporation of India (CONCOR)
3.Engineers India Limited (EIL)
4.Hindustan Aeronautics Limited (HAL)
5.Mahanagar Telephone Nigam Limited (MTNL)
6.National Aluminium Company (NALCO)
7.National Buildings Construction Corporation (NBCC)
8.National Mineral Development Corporation (NMDC)
9.NLC India Limited (NLCIL)
10.Oil India Limited (OIL)
11.Power Finance Corporation (PFC)
12.Rashtriya Ispat Nigam Limited (RINL)
13.Rural Electrification Corporation (REC)
14.Shipping Corporation of India (SCI)
List of Miniratna-I :
1.Airports Authority of India (AAI)
2.Antrix Corporation
3.Balmer Lawrie (BL)
4.Bharat Coking Coal Limited (BCCL)
5.Bharat Dynamics Limited (BDL)
6.Bharat Earth Movers Limited (BEML)
7.Bharat Sanchar Nigam Limited (BSNL)
8.Bridge and Roof
9.Central Warehousing Corporation
10.Central Coalfields Limited
11.Chennai Petroleum Corporation (CPCL)
12.Cochin Shipyard (CSL)
13.Cotton Corporation of India Limited (CCIL)
14.Dredging Corporation of India (DCI)
15.EdCIL (India) Limited (EdCIL)
16.Kamarajar Port
17.Garden Reach Shipbuilders & Engineers (GSE)
18.Goa Shipyard (GSL)
19.Hindustan Copper (HCL)
21.Hindustan Newsprint
22.Hindustan Paper
23.Housing and Urban Development Corporation
24.HSCC
25.India Tourism Development Corporation (ITDC)
26.India Trade Promotion Organisation (ITPO)
27.Indian Rare Earths (IREL)
28.Indian Railway Catering and Tourism Corporation (IRCTC)
29.Indian Renewable Energy Development Agency
30.Ircon International
31.Kudremukh Iron Ore Company
32.Mazagon Dock Limited
33.Mahanadi Coalfields (MCL)
MOIL
34.Mangalore Refinery and Petrochemicals Limited (MRPL)
35.Mishra Dhatu Nigam
36.MMTC Ltd.
37.MSTC Limited
38.National Fertilizers (NFL)
39.National Small Industries Corporation Limited
40.National Seeds Corporation (NSC)
41.NHPC Ltd.
42.Northern Coalfields (NCL)
43.North Eastern Electric Power Corporation Limited (NEEPCL)
44.Numaligarh Refinery
45.ONGC Videsh
46.Pawan Hans
47.Projects and Development India Limited (PDIL)
48.RailTel Corporation of India
49.Rail Vikas Nigam Limited
50.Rashtriya Chemicals & Fertilizers (RCF)
RITES
51.Ramagundam Fertilizers and Chemicals Ltd.
52.SJVN Ltd.
53.Security Printing and Minting Corporation of India
54.South Eastern Coalfields (SECL)
55.State Trading Corporation of India
56.Telecommunications Consultants India (TCIL)
57.THDC Ltd.
58.Western Coalfields (WCL)
59.Water and Power Consultancy Services
60.Projects & Development India Ltd
61.Mineral Exploration Corporation Limited
List of Miniratna-II :
1. Artificial Limbs Manufacturing Corporation of India
2. Bharat Pumps & Compressors Limited
3. Broadcast Engineering Consultants India Limited
4. Central Railside Warehouse Company Limited
5. Engineering Projects (India) Limited
6. FCI Aravali Gypsum & Minerals India Limited
7. Ferro Scrap Nigam Limited
8. HMT (International) Limited
9. Indian Medicines & Pharmaceuticals Corporation Limited
10. MECON Limited
11. National Film Development Corporation Limited
12. Rajasthan Electronics & Instruments Limited