Eastern Coalfields Limited
E659362
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Eastern Coalfields Limited canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7364883 — 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: Eastern Coalfields Limited Context triple: [Raniganj coalfield, operator, Eastern Coalfields Limited]
-
A.
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.
-
B.
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.
-
C.
Durgapur Projects Limited
Durgapur Projects Limited is a state-owned power generation and distribution company based in Durgapur, West Bengal, India.
-
D.
Tata Steel Jamshedpur Works
Tata Steel Jamshedpur Works is a major integrated steel plant in Jamshedpur, India, and one of the oldest and most significant industrial complexes in 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: Eastern Coalfields Limited Target entity description: 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.
-
A.
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.
-
B.
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.
-
C.
Durgapur Projects Limited
Durgapur Projects Limited is a state-owned power generation and distribution company based in Durgapur, West Bengal, India.
-
D.
Tata Steel Jamshedpur Works
Tata Steel Jamshedpur Works is a major integrated steel plant in Jamshedpur, India, and one of the oldest and most significant industrial complexes in 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 (26)
| Predicate | Object |
|---|---|
| instanceOf |
coal mining company
ⓘ
state-owned enterprise ⓘ |
| businessModel | Mining and sale of coal ⓘ |
| country | India ⓘ |
| focusRegion | Eastern coalfields of India NERFINISHED ⓘ |
| headquartersLocation | West Bengal NERFINISHED ⓘ |
| industry | Coal mining ⓘ |
| legalForm | Limited company ⓘ |
| market | Domestic coal market of India ⓘ |
| operatesIn |
Jharkhand
NERFINISHED
ⓘ
West Bengal NERFINISHED ⓘ |
| ownership | Government of India NERFINISHED ⓘ |
| parentOrganization | Coal India Limited NERFINISHED ⓘ |
| parentSector | Ministry of Coal, Government of India NERFINISHED ⓘ |
| partOf | Coal India group of companies NERFINISHED ⓘ |
| primaryActivity |
Coal exploration
ⓘ
Coal mining operations ⓘ Coal production ⓘ |
| product | Coal ⓘ |
| regionServed | Eastern India NERFINISHED ⓘ |
| resourceTypeMined |
Coking coal
ⓘ
Non-coking coal ⓘ |
| role | Coal producer for power, industry and other sectors in India ⓘ |
| sector | Public sector ⓘ |
| subsidiaryOf | Coal India Limited NERFINISHED ⓘ |
| typeOfCompany | Public sector undertaking ⓘ |
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: Eastern Coalfields Limited Description of subject: 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.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.