Production units of Indian Railways
E574385
The Production units of Indian Railways are specialized manufacturing and maintenance facilities that build, overhaul, and upgrade locomotives, coaches, wagons, and other rolling stock for the national railway system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Production units of Indian Railways canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6162545 — 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: Production units of Indian Railways Context triple: [Ministry of Railways (India), hasAuthorityOver, Production units of Indian Railways]
-
A.
Indian Railways
Indian Railways is India’s state-owned national railway system, operating one of the world’s largest rail networks for passenger and freight transport across the country.
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B.
Ministry of Railways (India)
The Ministry of Railways (India) is the central government ministry responsible for the policy, planning, development, and regulation of Indian Railways, one of the world’s largest rail networks.
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C.
Indian Railways Service of Engineers
The Indian Railways Service of Engineers is a prestigious Group ‘A’ central engineering cadre responsible for planning, constructing, and maintaining the civil engineering infrastructure of Indian Railways.
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D.
Rail Vikas Nigam Limited
Rail Vikas Nigam Limited is an Indian government-owned company responsible for implementing and fast-tracking rail infrastructure and capacity enhancement projects across the Indian Railways network.
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E.
Kanpur electric loco shed
Kanpur electric loco shed is a major Indian Railways facility in Kanpur responsible for housing, maintaining, and servicing electric locomotives operating in the region.
- 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: Production units of Indian Railways Target entity description: The Production units of Indian Railways are specialized manufacturing and maintenance facilities that build, overhaul, and upgrade locomotives, coaches, wagons, and other rolling stock for the national railway system.
-
A.
Indian Railways
Indian Railways is India’s state-owned national railway system, operating one of the world’s largest rail networks for passenger and freight transport across the country.
-
B.
Ministry of Railways (India)
The Ministry of Railways (India) is the central government ministry responsible for the policy, planning, development, and regulation of Indian Railways, one of the world’s largest rail networks.
-
C.
Indian Railways Service of Engineers
The Indian Railways Service of Engineers is a prestigious Group ‘A’ central engineering cadre responsible for planning, constructing, and maintaining the civil engineering infrastructure of Indian Railways.
-
D.
Rail Vikas Nigam Limited
Rail Vikas Nigam Limited is an Indian government-owned company responsible for implementing and fast-tracking rail infrastructure and capacity enhancement projects across the Indian Railways network.
-
E.
Kanpur electric loco shed
Kanpur electric loco shed is a major Indian Railways facility in Kanpur responsible for housing, maintaining, and servicing electric locomotives operating in the region.
- F. None of above. chosen
Statements (63)
| Predicate | Object |
|---|---|
| instanceOf |
industrial facility network
ⓘ
railway production system ⓘ |
| componentProduced |
EMU and MEMU train sets
ⓘ
LHB coaches ⓘ coaches ⓘ locomotives ⓘ spare parts for rolling stock ⓘ wagons ⓘ |
| country | India ⓘ |
| employer | skilled railway workforce ⓘ |
| governingBody | Ministry of Railways Government of India NERFINISHED ⓘ |
| hasPart |
Ajmer Workshop
NERFINISHED
ⓘ
Amritsar Workshop NERFINISHED ⓘ Banaras Locomotive Works NERFINISHED ⓘ Bhubaneswar Carriage Repair Workshop NERFINISHED ⓘ Carriage Repair Workshop Harnaut NERFINISHED ⓘ Carriage Repair Workshop Tirupati NERFINISHED ⓘ Charbagh Workshop Lucknow NERFINISHED ⓘ Chittaranjan Locomotive Works NERFINISHED ⓘ Diesel Loco Modernisation Works Patiala NERFINISHED ⓘ Diesel Locomotive Factory Marhowrah NERFINISHED ⓘ Diesel Locomotive Works Varanasi NERFINISHED ⓘ Electric Locomotive Factory Madhepura NERFINISHED ⓘ Golden Rock Workshop Tiruchirappalli NERFINISHED ⓘ Integral Coach Factory NERFINISHED ⓘ Jamalpur Workshop NERFINISHED ⓘ Kanchrapara Workshop NERFINISHED ⓘ Kharagpur Workshop NERFINISHED ⓘ Liluah Workshop NERFINISHED ⓘ Mancheswar Workshop NERFINISHED ⓘ Matunga Workshop Mumbai NERFINISHED ⓘ Modern Coach Factory Rae Bareli NERFINISHED ⓘ Mysore Central Workshop NERFINISHED ⓘ Parel Workshop Mumbai NERFINISHED ⓘ Perambur Carriage Works NERFINISHED ⓘ Perambur Loco Works NERFINISHED ⓘ Rail Coach Factory Kapurthala NERFINISHED ⓘ Rail Spring Karkhana Gwalior NERFINISHED ⓘ Rail Wheel Factory Yelahanka NERFINISHED ⓘ Rail Wheel Plant Bela NERFINISHED ⓘ Saharanpur Workshop NERFINISHED ⓘ Tirupati Workshop NERFINISHED ⓘ |
| industry | rail transport ⓘ |
| linkedTo |
Indian Railways workshops
NERFINISHED
ⓘ
zonal railways of Indian Railways ⓘ |
| maintenanceActivity |
periodic overhauling of coaches
ⓘ
periodic overhauling of locomotives ⓘ periodic overhauling of wagons ⓘ |
| operatedBy | Indian Railways NERFINISHED ⓘ |
| ownedBy | Indian Railways ⓘ |
| productType |
diesel locomotives
ⓘ
electric locomotives ⓘ freight wagons ⓘ metro and suburban coaches ⓘ passenger coaches ⓘ |
| purpose |
manufacture of rolling stock
ⓘ
modernization of rolling stock ⓘ overhaul of rolling stock ⓘ |
| sector | railway manufacturing ⓘ |
| serviceArea | pan-India ⓘ |
| technologyFocus |
energy-efficient rolling stock
ⓘ
high-horsepower electric locomotives ⓘ stainless steel and LHB coach technology ⓘ |
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: Production units of Indian Railways Description of subject: The Production units of Indian Railways are specialized manufacturing and maintenance facilities that build, overhaul, and upgrade locomotives, coaches, wagons, and other rolling stock for the national railway system.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.