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Dibang Multipurpose Project

Feb. 19, 2026

The under-construction 2,880 MW Dibang multipurpose hydel project in Arunachal Pradesh recently achieved a significant milestone with the successful daylighting of Diversion Tunnel-3 (DT-3).

About Dibang Multipurpose Project:

  • It is a flood control cum hydroelectric power project to be developed on the Dibang River, a tributary of the Brahmaputra River, in Arunachal Pradesh.
  • At 2,880 MW installed capacity, it will be the country’s biggest hydropower facility.
  • It is being developed by India’s state-run National Hydroelectric Power Corporation (NHPC).
  • The project is designed as an energy storage project, with flood moderation as one of the key objectives, besides power generation.
  • Project Features:
    • The project envisages the construction of a concrete gravity dam, which will be the highest concrete gravity dam of India.
    • The dam is planned to be constructed with the Roller Compacted Concrete (RCC) technique, and it will be the highest RCC dam in the World.

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