Subansiri Upper Hydroelectric Project

Subansiri Upper Hydroelectric Project is a run-of-the-river project planned on the Subansiri River basin in Arunachal Pradesh. Read more aboutSubansiri Upper Hydroelectric Project, Location, Capacity, Key Facts, Latest News.

Subansiri Upper Hydroelectric Project
Table of Contents☰

Subansiri Upper Hydroelectric Project Latest News

Hundreds recently protested in Daporijo, Arunachal Pradesh, against the proposed 2,000 MW Subansiri Upper Hydroelectric Project.

About Subansiri Upper Hydroelectric Project

  • It is a 1,800 MW hydropower project. 
  • It is a run-of-the-river project planned on the Subansiri River basin in Arunachal Pradesh.
  • It is expected to enter into commercial operation in 2031.
  • The project is being developed by KSK Upper Subansiri Hydro Energy and is currently owned by KSK Energy Ventures.
  • The gross head of the project will be 199.5 m. 
  • The project is expected to generate 6,581.29 GWh of electricity. The project cost is expected to be around $2,346.87m.

Key Facts about Subansiri River

  • It is a Trans-Himalayan river originating from the western part of Mount Porom (5059 m) in the Tibetan Himalaya. (Kangig glacier range in Tibet)
  • It is also called the Gold River, the Subansiri River is famous for its gold dust.
  • It enters into the plains of Assam through a gorge near Gerukamukh. 
  • It is the right-bank tributary of the Brahmaputra. It joins the Brahmaputra River in the Lakhimpur district of Assam.
  • It flows through Assam, Arunachal Pradesh, and the Tibet Autonomous Region of China.
  • Tributaries: Major tributaries of the river are Laro, Nye, Yume, Tsari, Kamla, Jiyadhol, Ranganadi and Dikrong.

Source: TOI

Update Icon
Latest UPSC Exam 2026 Updates

Date IconLast updated on August, 2026

→ UPSC Mains 2026 will be conducted on 21st, 22nd, 23rd, 29th and 30th August 2026.

→ Check out the latest UPSC Syllabus 2026 here.

→ UPSC Mains Admit Card 2026 is expected to be released in early August at upsc.gov.in or upsconline.nic.in

→ Enroll in Vajiram & Ravi’s UPSC Mains Test Series 2027 for structured answer writing practice, expert evaluation, and exam-oriented feedback.

→ Join Vajiram & Ravi’s UPSC Mentorship Program 2027 for personalized guidance, strategy planning, and one-to-one support from experienced mentors.

→ Go through the UPSC Mains Previous Year Papers to enhance your preparation.

→ Download UPSC Mains Essay Paper 2025, UPSC Mains GS Paper-I 2025, UPSC Mains GS Paper-II 2025, UPSC Mains GS Paper-III 2025, UPSC Mains GS Paper-IV 2025, UPSC Mains English (Compulsory) Paper 2025, UPSC Mains Hindi (Qualifying) Paper 2025 here.

→ UPSC has released UPSC Toppers List 2025 with the Civil Services final result on its official website.

→ UPSC Calendar 2027 has been released.

→ Also check Best UPSC Coaching in India

Subansiri Upper Hydroelectric Project FAQs

Q1. In which Indian state is the Subansiri Upper Hydroelectric Project located?+

Q2. What is the total installed capacity of the Subansiri Upper Hydroelectric Project?+

Q3. What is the expected annual power generation capacity of the Subansiri Upper Hydroelectric Project?+

Q4. The Subansiri River is also known by which other name?+

Tags: prelims pointers subansiri upper hydroelectric project upsc current affairs upsc prelims current affairs

Vajiram Prelims Team
At Vajiram & Ravi, our team includes subject experts who have appeared for the UPSC Mains and the Interview stage. With their deep understanding of the exam, they create content that is clear, to the point, reliable, and helpful for aspirants.Their aim is to make even difficult topics easy to understand and directly useful for your UPSC preparation—whether it’s for Current Affairs, General Studies, or Optional subjects. Every note, article, or test is designed to save your time and boost your performance.
UPSC GS Course 2026
UPSC GS Course 2026
₹1,80,000
Enroll Now
GS Foundation Course 2 Yrs
GS Foundation Course 2 Yrs
₹2,45,000
Enroll Now
UPSC Mentorship Program
UPSC Mentorship Program
₹85000
Enroll Now
UPSC Sureshot Mains Test Series
UPSC Sureshot Mains Test Series
₹27000
Enroll Now
Prelims Powerup Test Series
Prelims Powerup Test Series
₹14000
Enroll Now
Enquire Now