North Koel River

  • North Koel River rises on Ranchi plateau in Jharkhand.
  • It joins the Sone River a few miles north-west of Haidarnagar.
  • It meanders through the northern part of Betla National Park
  • Why in news?
    • North Koel Reservoir Project is being restarted.
    • It aims to provide irrigation to 111,521 hectares of land annually in the most backward and drought prone areas in Jharkhand and Bihar.
    • The construction of the project originally had started in 1972 and continued till 1993 when it was stopped by the Bihar forest department over environmental concerns.
    • The Mandal dam as part of the project had threatened to submerge portions of the Palamau Tiger Reserve and Betla National Park.
    • The National Wildlife Board (NWB) had cleared the project in June 2017 with certain conditions.



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