Maharatnas, 36 Mani Ratnas and 16 Navratnas in India.
This is also an important topic as questions asked recently in UIIC assistant mains exam and IBPS Clerk mains exam as well, so candidates need to look after the topic thoroughly. Below is a list and tricks to learn the public sector companies and their headquarters.
Maharatnas
| Chris GAIL ne Delhi ke janpath market mai lagi SAIL main se BHEL company ka bat khareeda or NTPC ki taraf se khelte hue Mumbai ke wankhede stadium mai Sunday ko hue match main IOCL ke bowler BPCL ki full toss ball par itna lamba six mara ki ball Dehradun ke ONGC stadium mai jaa kr giri or CIL ke ladke ko Kolkata se new ball lane ko kaha or match fir shuru hua | ||
| Trick | PSU | Headquarter |
|---|---|---|
| NTPC/ Delhi | National Thermal Power Corporation (NTPC) | Delhi |
| GAIL/ Delhi | Gas Authority Of India Ltd (GAIL) | Delhi |
| SAIL/ Delhi | Steel Authority Of India Ltd (SAIL) | Delhi |
| BHEL/ Delhi | Bharat Heavy Electrical Ltd (BHEL) | Delhi |
| BPCL/ Mumbai | Bharat Petroleum Corporation Ltd (BPCL) | Mumbai |
| IOCL/ Mumbai | Indian Oil Corporation Ltd (IOCL) | Mumbai |
| ONGC/ Dehradun | Oil and Natural Gas Corporation (ONGC) | Dehradun |
| CIL/ Kolkata | Coal India Ltd (CIL) | Kolkat |
Navratnas
| PGCIL ke Guru PFC ne telephone ka connection katne par apne chelo ko Delhi ke MTNL office mai CONCOR pathar mar kar tod fod krne bheja, waha MTNL ki complaint par REC (Race) movie ke hero EIL (Ali) ne NBCC ki help se sabko pakad kar jail main band kar diya | ||
| Trick | PSU | Headquarter |
|---|---|---|
| CONCOR/ Delhi | Container Corporation Of India (CONCOR) | Delhi |
| EIL/ Delhi | Engineers India Ltd (EIL) | Delhi |
| MTNL/ Delhi | Mahanagar Telephone Nigam Ltd (MTNL) | Delhi |
| NBCC/ Delhi | National Buildings Construction Corporation (NBCC) | Delhi |
| PFC/ Delhi | Power Finance Corporation (PFC) | Delhi |
| REC/ Delhi | Rural Electrification Corporation (REC) | Delhi |
| PGCIL/ Delhi | Power Grid Corporation of India Ltd (PGCIL) | Gurugram |
| Vinay ne Mumbai ke HPCL petrol pump par kam patrol dene ki complaint SCI se kar ke Bengaluru ke HAL (Har) petrol pump par khatre ki BEL (Ghanti) baja di | ||
| Trick | PSU | Headquarter |
|---|---|---|
| SCI/ Mumbai | Shipping Corporation Of India (SCI) | Mumbai |
| HPCL/ Mumbai | Hindustan Petroleum Corporation Ltd (HPCL) | Mumbai |
| HAL/ Mumbai | Hindustan Aeronautics Ltd (HAL) | Bengaluru |
| BEL/ Mumbai | Bharat Electronics Ltd (BEL) | Bengaluru |
| Vishaka ne mosquito bhagane ke liye RIN, naam ka Oil Assam ,se kharida jab vo assam ki trip par gayi thi or apne dost Hyder ko uske NGO NMDC ,mai padhne wale NALayak balak Bhuban ko dene ko kaha, taki use Naye Veli bimariyo se bachaya ja sake | ||
| Trick | PSU | Headquarter |
|---|---|---|
| NAL/ Bhuban | National Aluminium Company (NALCO) | Bhubaneswar |
| NMDC/ Hyder | National Minerals Development Corporation (NMDC) | Hyderabad |
| RIN/ Vishakha | Rashtriya Ispat Nigam Ltd (RINL) | Vishakhapatnam |
| Naye Veli | Neyveli Lignite Corporation Ltd (NLC) | Neyveli, TN |
| OIL/ Assam | Oil India Ltd (OIL) | Duliajam, Assam |
Mini Ratnas
| Rail Vikas (RVNL) ke liye Indian Railway Construction (IRC) ne Security or Printing corporation (SPMCIL) ke sath Delhi ek mou sign kiya | ||
| Trick | PSU | Headquarter |
|---|---|---|
| IRC/ Delhi | Indian Railway Construction Limited (IRC) | Delhi |
| RVNL/ Delhi | Rail Vikas Nigam Limited (RVNL) | Delhi |
| SPMCIL/ Delhi | Securities Printing and Minting Corporation of India Ltd (SPMCIL) | Delhi |
| National Small Industries (NSIC) ne Seeds (NSC) ko Central warehouse (CWC) Delhi ke Airport (AAI) se export krne ke liye IRCTC ke sath contract sign kiya | ||
| Trick | PSU | Headquarter |
|---|---|---|
| NSC/ Delhi | National Seeds Corporation (NSC) | Delhi |
| NSIC/ Delhi | National Small Industries Corporation Limited (NSIC) | Delhi |
| CWC/ Delhi | Central Warehousing Corporation (CWC) | Delhi |
| AAI/ Delhi | Airport Authority of India (AAI) | Delhi |
| IRCTC/ Delhi | Indian Railway Catering and Tourism Corporation (IRCTC) | Delhi |
| Renewable Energy dept (IREDA) ke Bharat Sanchar (BSNL) Program ke liye, Telecommunication Consultants (TCIL) ne Delhi Broadcasting Engineers (BECIL) ke sath contract sign kiya | ||
| Trick | PSU | Headquarter |
|---|---|---|
| BECIL/ Delhi | Broadcasting Engineering Consultation of India Ltd (BECIL) | Delhi |
| TCIL/ Delhi | Telecommunication Consultants India Ltd (TCIL) | Delhi |
| BSNL/ Delhi | Bharat Sanchar Nigam Limited (BSNL) | Delhi |
| IREDA/ Delhi | Indian Renewable Energy and Development Authority (IREDA) | Delhi |
| Gurgram ke Railtel Corporation ne apne RITES ke liye, Noida ki National Fertilizers corporation (NFL) ke against Educational Consultant (ECIL) of NHPC Faridabad, ke pass complaint register karwayi | ||
| Trick | PSU | Headquarter |
|---|---|---|
| RITES/ Gurugram | RITES Limited (RITES) | Gurugram |
| Railtel/ Gurugram | Railtel Corporation of India (RCI) | Gurugram |
| NFL/ Noida | National Fertilizers Limited (NFL) | Noida |
| ECIL/ Noida | Educational Consultant of India Limited (ECIL) | Noida |
| NHPC/ Faridabad | NHPC Limited (NHPC) | Faridabad |
| Assam ke NRI (NRL) Gola ne Sambha ki Mahanadi Coal Field (MCL) ka contract Mangalore Refinery (MRPL) ko de diya | ||
| Trick | PSU | Headquarter |
|---|---|---|
| MCL/ Sambha | Mahanadi Coalfields Limited (MCL) | Sambhalpur |
| MRPL/ Mangalore | Mangalore Refinery & Petrochemicals Limited (MRPL) | Mangalore |
| NRI/ Gola | Numaligarh Refinery Limited (NRL) | Golaghat |
| Rashtriya Chemical and Fertilizers (RCF) ne Mumbai ke Mazgaon Dock Ltd (MDL) ko Nagpur mai hue Minerals Exploration (MECL) incident par ek National Film Develop krne ko bola (NFDC) or MDL ne Indian Rare Earth Metals (IREL) ke naam se film produce kari | ||
| Trick | PSU | Headquarter |
|---|---|---|
| MDL/ Mumbai | Mazgaon Dock Limited (MDL) | Mumbai |
| IREL/ Mumbai | Indian Rare Earths Limited (IREL) | Mumbai |
| RCF/ Mumbai | Rashtriya Chemicals and Fertilizers Limited (RCF) | Mumbai |
| NFDC/ Mumbai | National Film Development Corporation of India (NFDC) | Mumbai |
| MECL/ Nagpur | Mineral Exploration Corporation Limited (MECL) | Nagpur |
| Bharat ke Dynamic (BDL) Mishra Dhatu (MIDHANI) wale ne Hyderabad mai Hindustan Copper ke Naam se new company kholi or Kolkata se le kar Garden tak Engineers or Shipbuilders (GRSE) ko free delivery ki services offer kari | ||
| Trick | PSU | Headquarter |
|---|---|---|
| BDL/ Hyderabad | Bharat Dynamics Limited (BDL) | Hyderabad |
| MIDHANI/ Hyderabad | Mishra Dhatu Nigam Limited (MIDHANI) | Hyderabad |
| Hindustan Copper/ Kolkata | Hindustan Copper Limited | Kolkata |
| GRSE/ Kolkata | Garden Reach Shipbuilders and Engineers (GRSE) | Kolkata |
| MECON ne Ranchi ki CCL league mai kaha ki Bharat Coking Coal (BCCL) Site Dhan se bhari hui hain | ||
| Trick | PSU | Headquarter |
|---|---|---|
| CCL/ Ranchi | Central Coalfield Limited (CCL) | Ranchi |
| MECON/ Ranchi | Metallurgical and Engineering Consultants Ltd (MECON) | Ranchi |
| BCCL/ Dhan | Bharat Coking Coal Limited (BCCL) | Dhanbad |
| ONGC Videsh (OVL) ne Dehradun aa kar Bengaluru ki company Bharat Earth Movers (BEML) ki complaint DCI Vishakha ko kari kyu ki BEML ko usne Shimla ki Satluj Jal Vidyut Nigam (SJVN) colony se transport provide krne ke liye hire kiya tha | ||
| Trick | PSU | Headquarter |
|---|---|---|
| BEML/ Bengaluru | Bharat Earth Movers Limited (BEML) | Bengaluru |
| DCI/ Vishakha | Dredging Corporation of India (DCI) | Vishakhapatnam |
| OVL/ Dehradun | ONGC Videsh Limited (OVL) | Dehradun |
| SJVN/ Shimla | Satluj Jal Vidyut Nigam Limited (SJVN) | Shimla |
