Mullaperiyar Dam
E849747
Mullaperiyar Dam is a masonry gravity dam on the Periyar River in Kerala, India, known for its age, inter-state water-sharing disputes, and ongoing safety concerns.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mullaperiyar Dam canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T10141646 — 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: Mullaperiyar Dam Context triple: [Idukki district, contains, Mullaperiyar Dam]
-
A.
Bhavanisagar Dam
Bhavanisagar Dam is a major masonry dam in Tamil Nadu, India, known for irrigation, flood control, and hydroelectric power generation.
-
B.
Mettur Dam
Mettur Dam is a major masonry dam in Tamil Nadu, India, built across the Kaveri River and known for its large reservoir and role in irrigation and power generation.
-
C.
Malaprabha Dam
Malaprabha Dam is a major irrigation and water-supply dam built across the Malaprabha River in Karnataka, India.
-
D.
Orathuppalayam Dam
Orathuppalayam Dam is a reservoir and irrigation structure built across the Noyyal River in Tamil Nadu, India, primarily used for water storage and agricultural purposes.
-
E.
Gajanur Dam
Gajanur Dam is a scenic reservoir and popular tourist spot in Karnataka, India, known for its lush surroundings and role in irrigation and water management near Shivamogga.
- 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: Mullaperiyar Dam Target entity description: Mullaperiyar Dam is a masonry gravity dam on the Periyar River in Kerala, India, known for its age, inter-state water-sharing disputes, and ongoing safety concerns.
-
A.
Bhavanisagar Dam
Bhavanisagar Dam is a major masonry dam in Tamil Nadu, India, known for irrigation, flood control, and hydroelectric power generation.
-
B.
Mettur Dam
Mettur Dam is a major masonry dam in Tamil Nadu, India, built across the Kaveri River and known for its large reservoir and role in irrigation and power generation.
-
C.
Malaprabha Dam
Malaprabha Dam is a major irrigation and water-supply dam built across the Malaprabha River in Karnataka, India.
-
D.
Orathuppalayam Dam
Orathuppalayam Dam is a reservoir and irrigation structure built across the Noyyal River in Tamil Nadu, India, primarily used for water storage and agricultural purposes.
-
E.
Gajanur Dam
Gajanur Dam is a scenic reservoir and popular tourist spot in Karnataka, India, known for its lush surroundings and role in irrigation and water management near Shivamogga.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
dam
ⓘ
masonry gravity dam ⓘ |
| age | over 125 years ⓘ |
| basinCountry | India ⓘ |
| beneficiaryState | Tamil Nadu NERFINISHED ⓘ |
| commissioningDate | 1895 ⓘ |
| completionDate | 1895 ⓘ |
| constructedBy | Madras Presidency NERFINISHED ⓘ |
| constructedUnder | British rule in India ⓘ |
| constructionStartDate | 1887 ⓘ |
| country | India ⓘ |
| crosses | Periyar River NERFINISHED ⓘ |
| designedBy | John Pennycuick NERFINISHED ⓘ |
| downstreamRiskArea |
Idukki Reservoir
NERFINISHED
ⓘ
Periyar River downstream settlements ⓘ |
| governedBy | Periyar Lease Agreement of 1886 NERFINISHED ⓘ |
| height | 53.66 metres ⓘ |
| irrigatesRegion |
Madurai district
NERFINISHED
ⓘ
Ramanathapuram district NERFINISHED ⓘ Sivaganga district NERFINISHED ⓘ Theni district NERFINISHED ⓘ |
| knownFor |
age
ⓘ
inter-state water-sharing disputes ⓘ structural safety concerns ⓘ |
| leaseRenewalYear | 1970 ⓘ |
| length | 365.85 metres ⓘ |
| locatedIn | Kerala NERFINISHED ⓘ |
| locatedInDistrict | Idukki district NERFINISHED ⓘ |
| locatedInMountainRange | Western Ghats NERFINISHED ⓘ |
| locatedInProtectedArea | Periyar Tiger Reserve NERFINISHED ⓘ |
| locatedNear | Thekkady NERFINISHED ⓘ |
| locatedOnRiver | Periyar River NERFINISHED ⓘ |
| maximumWaterLevelControversy | 136 feet vs 142 feet dispute ⓘ |
| nearbyCityBenefiting | Madurai NERFINISHED ⓘ |
| operatedBy | Government of Tamil Nadu NERFINISHED ⓘ |
| ownedBy | Government of Kerala NERFINISHED ⓘ |
| purpose |
irrigation
ⓘ
power generation support ⓘ water supply ⓘ |
| reservoirName |
Mullaperiyar Reservoir
NERFINISHED
ⓘ
Periyar Lake NERFINISHED ⓘ |
| riparianState | Kerala NERFINISHED ⓘ |
| seismicZone | seismically sensitive area of Western Ghats ⓘ |
| subjectOf |
Supreme Court of India litigation
ⓘ
environmental impact debates ⓘ farmer agitations in Tamil Nadu ⓘ inter-state water dispute between Kerala and Tamil Nadu ⓘ public protests in Kerala ⓘ safety concerns ⓘ |
| typeOfConstruction | lime-surkhi masonry ⓘ |
| waterDivertedTo | Vaigai River basin 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: Mullaperiyar Dam Description of subject: Mullaperiyar Dam is a masonry gravity dam on the Periyar River in Kerala, India, known for its age, inter-state water-sharing disputes, and ongoing safety concerns.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.