Coal India Limited
E660093
Coal India Limited is a state-owned Indian coal mining company and one of the largest coal producers in the world.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Coal India Limited canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7364884 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Coal India Limited Context triple: [Raniganj coalfield, ownedBy, Coal India Limited]
-
A.
Bharat Coking Coal Limited
Bharat Coking Coal Limited is an Indian government-owned coal mining company and a subsidiary of Coal India Limited, primarily engaged in producing coking coal from mines in the Jharia and Raniganj coalfields.
-
B.
Eastern Coalfields Limited
Eastern Coalfields Limited is an Indian state-owned coal mining company and a subsidiary of Coal India Limited, primarily engaged in coal production in the eastern region of the country.
-
C.
Northern Coalfields Limited
Northern Coalfields Limited is an Indian state-owned coal mining company and a major subsidiary of Coal India Limited, primarily operating large open-cast mines in the Singrauli coalfields.
-
D.
NHPC Limited
NHPC Limited is an Indian government-owned hydropower company that develops, operates, and maintains large hydroelectric projects across the country.
-
E.
Mishra Dhatu Nigam Limited
Mishra Dhatu Nigam Limited is an Indian public sector company specializing in the manufacture of superalloys, special steels, and titanium alloys primarily for strategic sectors such as defence, space, and nuclear energy.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Coal India Limited Target entity description: Coal India Limited is a state-owned Indian coal mining company and one of the largest coal producers in the world.
-
A.
Bharat Coking Coal Limited
Bharat Coking Coal Limited is an Indian government-owned coal mining company and a subsidiary of Coal India Limited, primarily engaged in producing coking coal from mines in the Jharia and Raniganj coalfields.
-
B.
Eastern Coalfields Limited
Eastern Coalfields Limited is an Indian state-owned coal mining company and a subsidiary of Coal India Limited, primarily engaged in coal production in the eastern region of the country.
-
C.
Northern Coalfields Limited
Northern Coalfields Limited is an Indian state-owned coal mining company and a major subsidiary of Coal India Limited, primarily operating large open-cast mines in the Singrauli coalfields.
-
D.
NHPC Limited
NHPC Limited is an Indian government-owned hydropower company that develops, operates, and maintains large hydroelectric projects across the country.
-
E.
Mishra Dhatu Nigam Limited
Mishra Dhatu Nigam Limited is an Indian public sector company specializing in the manufacture of superalloys, special steels, and titanium alloys primarily for strategic sectors such as defence, space, and nuclear energy.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
coal mining company
ⓘ
public company ⓘ state-owned enterprise ⓘ |
| abbreviation | CIL NERFINISHED ⓘ |
| areaServed | India NERFINISHED ⓘ |
| businessModel | mining and sale of coal ⓘ |
| country | India ⓘ |
| foundedBy | Government of India NERFINISHED ⓘ |
| hasKeyRoleIn |
India energy sector
ⓘ
coal-based power generation in India ⓘ |
| headquartersLocation |
India
NERFINISHED
ⓘ
Kolkata NERFINISHED ⓘ West Bengal NERFINISHED ⓘ |
| inception | 1975 ⓘ |
| industry |
coal mining
ⓘ
fossil fuels ⓘ |
| isListedOn |
BSE SENSEX
NERFINISHED
ⓘ
Nifty 50 NERFINISHED ⓘ |
| languageOfWorkOrName |
English
ⓘ
Hindi ⓘ |
| legalForm |
limited company
ⓘ
public sector undertaking ⓘ |
| numberOfEmployees | over 200000 ⓘ |
| owner | Government of India NERFINISHED ⓘ |
| parentOrganization | Ministry of Coal NERFINISHED ⓘ |
| primaryFuel | coal ⓘ |
| product |
coal by-products
ⓘ
coking coal ⓘ thermal coal ⓘ |
| rank | one of the largest coal producers in the world ⓘ |
| regulator | Ministry of Coal NERFINISHED ⓘ |
| sector | public sector ⓘ |
| service |
coal exploration
ⓘ
coal mining ⓘ coal processing ⓘ |
| stockExchange |
Bombay Stock Exchange
NERFINISHED
ⓘ
National Stock Exchange of India NERFINISHED ⓘ |
| subsidiary |
Bharat Coking Coal Limited
NERFINISHED
ⓘ
Central Coalfields Limited NERFINISHED ⓘ Central Mine Planning and Design Institute NERFINISHED ⓘ Eastern Coalfields Limited NERFINISHED ⓘ Mahanadi Coalfields Limited NERFINISHED ⓘ Northern Coalfields Limited NERFINISHED ⓘ South Eastern Coalfields Limited NERFINISHED ⓘ Western Coalfields Limited NERFINISHED ⓘ |
| tickerSymbol | COALINDIA NERFINISHED ⓘ |
| typeOfCompany | Maharatna PSU ⓘ |
| website | https://www.coalindia.in ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Coal India Limited Description of subject: Coal India Limited is a state-owned Indian coal mining company and one of the largest coal producers in the world.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.