TNPSC Thervupettagam

India’s Largest Hydropower Project

December 27 , 2025 16 hrs 0 min 28 0
  • Unit-2 of the Subansiri Lower Hydroelectric Project, with a capacity of 250 Megawatt, was commissioned in Arunachal Pradesh.
  • The Subansiri Lower Hydroelectric Project has a total installed capacity of 2,000 Megawatt with eight units of 250 Megawatt each.
  • It is the largest hydropower project in India and is located in the North-East region.
  • The project is a run-of-the-river hydropower scheme built on the Subansiri River.
  • The project has the largest dam in North-East India, with a height of 116 metres.
  • The dam also helps in flood moderation to reduce flood risk in downstream areas.

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