Damodar Valley coalfields
E657065
The Damodar Valley coalfields are a major coal-bearing region in eastern India encompassing several important coalfields, including Jharia, that have long been central to the country’s coal mining industry.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Damodar Valley coalfields canonical | 3 |
| Damodar Valley industrial region | 2 |
| Jharia–Bokaro coal belt | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7306560 — 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: Damodar Valley coalfields Context triple: [Jharia coalfield, partOf, Damodar Valley coalfields]
-
A.
Raniganj coalfield
Raniganj coalfield is one of India’s oldest and most significant coal mining regions, located primarily in West Bengal and Jharkhand.
-
B.
Bokaro coalfield
Bokaro coalfield is a major coal-producing region in Jharkhand, India, known for its extensive reserves of high-quality coking coal that support the country’s steel and power industries.
-
C.
Sohagpur coalfield
Sohagpur coalfield is a major coal mining region in central India known for its significant reserves that support regional power generation and industry.
-
D.
Jharia coalfield
Jharia coalfield is one of India’s largest and oldest coal mining regions, renowned for its rich coking coal reserves and long-standing underground coal fires.
-
E.
Digboi oil field
Digboi oil field is one of the oldest producing oil fields in the world, located in Assam, India, and historically significant as the site of early oil exploration in Asia.
- 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: Damodar Valley coalfields Target entity description: The Damodar Valley coalfields are a major coal-bearing region in eastern India encompassing several important coalfields, including Jharia, that have long been central to the country’s coal mining industry.
-
A.
Raniganj coalfield
Raniganj coalfield is one of India’s oldest and most significant coal mining regions, located primarily in West Bengal and Jharkhand.
-
B.
Bokaro coalfield
Bokaro coalfield is a major coal-producing region in Jharkhand, India, known for its extensive reserves of high-quality coking coal that support the country’s steel and power industries.
-
C.
Sohagpur coalfield
Sohagpur coalfield is a major coal mining region in central India known for its significant reserves that support regional power generation and industry.
-
D.
Jharia coalfield
Jharia coalfield is one of India’s largest and oldest coal mining regions, renowned for its rich coking coal reserves and long-standing underground coal fires.
-
E.
Digboi oil field
Digboi oil field is one of the oldest producing oil fields in the world, located in Assam, India, and historically significant as the site of early oil exploration in Asia.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
coal-bearing area
ⓘ
coalfield region ⓘ |
| associatedWith |
opencast coal mining
ⓘ
underground coal mining ⓘ |
| coalType | bituminous coal ⓘ |
| contains |
Bokaro coalfield
NERFINISHED
ⓘ
East Bokaro coalfield NERFINISHED ⓘ Giridih coalfield NERFINISHED ⓘ Jharia coalfield NERFINISHED ⓘ Karanpura coalfield NERFINISHED ⓘ Ramgarh coalfield NERFINISHED ⓘ Raniganj coalfield NERFINISHED ⓘ West Bokaro coalfield NERFINISHED ⓘ |
| country | India ⓘ |
| economicImportance |
central to India’s coal mining industry
ⓘ
major coal-producing region of India ⓘ |
| environmentalIssues |
air pollution
ⓘ
land subsidence ⓘ mine fires ⓘ water pollution ⓘ |
| geologicalAge | Permian ⓘ |
| geologicalFormation | Gondwana coalfields NERFINISHED ⓘ |
| hasInfrastructure |
coal handling plants
ⓘ
coal washeries ⓘ railway coal transport network ⓘ |
| historicalSignificance | among earliest developed coal mining areas in India ⓘ |
| locatedIn |
Damodar River basin
NERFINISHED
ⓘ
Jharkhand NERFINISHED ⓘ West Bengal ⓘ eastern India NERFINISHED ⓘ |
| managedBy |
Bharat Coking Coal Limited
NERFINISHED
ⓘ
Coal India Limited NERFINISHED ⓘ Eastern Coalfields Limited NERFINISHED ⓘ |
| near |
Asansol
NERFINISHED
ⓘ
Bokaro Steel City NERFINISHED ⓘ Dhanbad NERFINISHED ⓘ |
| partOf |
Damodar Valley
NERFINISHED
ⓘ
Indian coal sector ⓘ |
| resource |
coking coal
ⓘ
non-coking coal ⓘ |
| stratigraphicUnit |
Damuda series
ⓘ
Raniganj formation NERFINISHED ⓘ |
| supportsIndustry |
steel plants in eastern India
ⓘ
thermal power plants in eastern India ⓘ |
| usedFor |
industrial fuel supply
ⓘ
power generation ⓘ steel production ⓘ |
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: Damodar Valley coalfields Description of subject: The Damodar Valley coalfields are a major coal-bearing region in eastern India encompassing several important coalfields, including Jharia, that have long been central to the country’s coal mining industry.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Damodar Valley industrial region
this entity surface form:
Jharia–Bokaro coal belt
this entity surface form:
Damodar Valley industrial region