Current Context : 2,000 MW Subansiri Lower Hydroelectric Project located on the Subansiri River at the Arunachal Pradesh-Assam border. Set to begin producing 750 MW of power by March 2025.

About the Subansiri River :

• Type: Trans-Himalayan river and right-bank tributary of the Brahmaputra.
• Nickname: Known as the “Gold River” for its gold dust.
• Origin and Course:
  • Starts in the Himalayas, China.
  • Flows east and southeast into India, through Assam and Arunachal Pradesh.
  • Joins the Brahmaputra in Assam’s Lakhimpur district.
• Length: About 518 km.
• Drainage Basin: Covers 32,640 sq. km.
• Significance: Largest tributary of the Brahmaputra, contributing 7.92% of its flow.