Delhi–Kolkata main line (via Lucknow and Mughalsarai, NR portion)
E465597
The Delhi–Kolkata main line (via Lucknow and Mughalsarai, NR portion) is a key segment of India’s primary rail corridor linking the national capital Delhi with Kolkata, passing through major northern cities under the jurisdiction of the Northern Railway zone.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Delhi–Kolkata main line (via Lucknow and Mughalsarai, NR portion) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4738359 — 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: Delhi–Kolkata main line (via Lucknow and Mughalsarai, NR portion) Context triple: [Northern Railway zone, hasMajorRoute, Delhi–Kolkata main line (via Lucknow and Mughalsarai, NR portion)]
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A.
Howrah–Nagpur–Mumbai line
The Howrah–Nagpur–Mumbai line is a major Indian Railways trunk route connecting Kolkata (Howrah) in the east with Mumbai in the west via Nagpur, serving as a key corridor for both passenger and freight traffic across central India.
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B.
Agra–Bandikui–Jaipur line
The Agra–Bandikui–Jaipur line is a key railway route in northern India that connects the historic city of Agra with Jaipur via Bandikui, serving as an important corridor for both passenger and freight traffic.
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C.
Agra–Gwalior–Jhansi line
The Agra–Gwalior–Jhansi line is a key railway route in northern India that connects the historic cities of Agra, Gwalior, and Jhansi, serving as an important corridor for both passenger and freight traffic.
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D.
Howrah–Bardhaman main line
The Howrah–Bardhaman main line is a major suburban and long-distance railway corridor in West Bengal, India, connecting Howrah (Kolkata) with Bardhaman and serving numerous important towns along the route.
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E.
Mumbai–Ahmedabad–Delhi main line
The Mumbai–Ahmedabad–Delhi main line is a major Indian Railways trunk route that connects Mumbai with Ahmedabad and Delhi, serving as a key corridor for long-distance passenger and freight traffic in western and northern India.
- 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: Delhi–Kolkata main line (via Lucknow and Mughalsarai, NR portion) Target entity description: The Delhi–Kolkata main line (via Lucknow and Mughalsarai, NR portion) is a key segment of India’s primary rail corridor linking the national capital Delhi with Kolkata, passing through major northern cities under the jurisdiction of the Northern Railway zone.
-
A.
Howrah–Nagpur–Mumbai line
The Howrah–Nagpur–Mumbai line is a major Indian Railways trunk route connecting Kolkata (Howrah) in the east with Mumbai in the west via Nagpur, serving as a key corridor for both passenger and freight traffic across central India.
-
B.
Agra–Bandikui–Jaipur line
The Agra–Bandikui–Jaipur line is a key railway route in northern India that connects the historic city of Agra with Jaipur via Bandikui, serving as an important corridor for both passenger and freight traffic.
-
C.
Agra–Gwalior–Jhansi line
The Agra–Gwalior–Jhansi line is a key railway route in northern India that connects the historic cities of Agra, Gwalior, and Jhansi, serving as an important corridor for both passenger and freight traffic.
-
D.
Howrah–Bardhaman main line
The Howrah–Bardhaman main line is a major suburban and long-distance railway corridor in West Bengal, India, connecting Howrah (Kolkata) with Bardhaman and serving numerous important towns along the route.
-
E.
Mumbai–Ahmedabad–Delhi main line
The Mumbai–Ahmedabad–Delhi main line is a major Indian Railways trunk route that connects Mumbai with Ahmedabad and Delhi, serving as a key corridor for long-distance passenger and freight traffic in western and northern India.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
railway corridor segment
ⓘ
railway line ⓘ |
| administrativeJurisdiction | Northern Railway zone NERFINISHED ⓘ |
| connectsCity |
Delhi
NERFINISHED
ⓘ
Lucknow NERFINISHED ⓘ Mughalsarai NERFINISHED ⓘ Varanasi NERFINISHED ⓘ |
| country | India ⓘ |
| electrification | 25 kV AC overhead line ⓘ |
| endPoint | Mughalsarai Junction NERFINISHED ⓘ |
| function |
freight transport
ⓘ
long-distance passenger transport ⓘ |
| gauge |
1676 mm broad gauge
ⓘ
5 ft 6 in broad gauge ⓘ |
| historicalOrigin | developed from East Indian Railway Company main line ⓘ |
| importance | one of the busiest railway routes in India ⓘ |
| locatedInRegion | North India NERFINISHED ⓘ |
| locatedInState |
Delhi
NERFINISHED
ⓘ
Uttar Pradesh NERFINISHED ⓘ |
| majorStation |
Bareilly Junction
NERFINISHED
ⓘ
Delhi Junction NERFINISHED ⓘ Ghaziabad Junction NERFINISHED ⓘ Lucknow NR NERFINISHED ⓘ Moradabad Junction NERFINISHED ⓘ Mughalsarai Junction NERFINISHED ⓘ New Delhi NERFINISHED ⓘ Varanasi Junction NERFINISHED ⓘ |
| operator | Northern Railway zone NERFINISHED ⓘ |
| owner | Indian Railways NERFINISHED ⓘ |
| partOf |
Delhi–Kolkata main line
NERFINISHED
ⓘ
Howrah–Delhi main line NERFINISHED ⓘ |
| partOfCorridor | Delhi–Kolkata rail corridor NERFINISHED ⓘ |
| railwayZone | Northern Railway NERFINISHED ⓘ |
| signallingSystem | colour light signalling (on most sections) ⓘ |
| startPoint | Delhi NERFINISHED ⓘ |
| strategicImportance | primary rail link between national capital region and eastern India ⓘ |
| trackConfiguration | double track or more on most sections ⓘ |
| usedBy |
express trains
ⓘ
freight trains ⓘ superfast trains ⓘ |
| via |
Lucknow
NERFINISHED
ⓘ
Mughalsarai Junction NERFINISHED ⓘ |
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: Delhi–Kolkata main line (via Lucknow and Mughalsarai, NR portion) Description of subject: The Delhi–Kolkata main line (via Lucknow and Mughalsarai, NR portion) is a key segment of India’s primary rail corridor linking the national capital Delhi with Kolkata, passing through major northern cities under the jurisdiction of the Northern Railway zone.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
Northern Railway zone
→
hasMajorRoute
→
Delhi–Kolkata main line (via Lucknow and Mughalsarai, NR portion)
ⓘ