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Tata Power Commissions 400 kV Koteshwar–Rishikesh Line, Delivering 1,000 MW Hydropower to North India

The 400 kV Koteshwar–Rishikesh transmission line project was executed under NRSS XXXVI Transmission Ltd., acquired by Resurgent Power Ventures Pvt. Ltd.- a joint venture promoted by Tata Power, ICICI Bank Limited, and global investors.

December 10, 2025. By Abha Rustagi

Tata Power has commissioned the 400 kV Koteshwar–Rishikesh transmission line, a critical link that will enable the evacuation of 1,000 MW of hydropower from the Tehri–Koteshwar generation complex in Uttarakhand to multiple northern states and Union Territories.

The project was executed under NRSS XXXVI Transmission Ltd., acquired by Resurgent Power Ventures Pvt. Ltd.- a joint venture promoted by Tata Power, ICICI Bank Limited, and global investors.

The new line will channel clean, renewable energy not only to Uttarakhand but also to Haryana, Punjab, Uttar Pradesh, Jammu & Kashmir, Himachal Pradesh, Chandigarh, Rajasthan, and Delhi, significantly strengthening regional energy security and grid reliability.

Constructed across some of the most challenging Himalayan terrain in New Tehri and Dehradun districts, the transmission line climbs to altitudes exceeding 1,816 meters above sea level. The project required extraordinary engineering ingenuity, from transporting materials through head-loading in remote, mountainous regions to adhering to strict environmental standards while operating in forested zones.

According to the official statement, despite logistical and geographical hurdles, more than 500 skilled personnel completed the project’s physical work within a single year (November 2024 to December 2025), following land clearance for 103 hectares.

This line represents the third major commissioning milestone under the NRSS XXXVI project. Earlier elements include the 400 kV LILO Sikar–Neemrana Double Circuit line (3.1 circuit km) and the 400 kV LILO Babai–Bhiwani Double Circuit line (222 circuit km).

With its addition, Tata Power now has 7,083 circuit km of transmission lines operational / under execution across India.

Tags:

Hydropower

Koteshwar Rishikesh Transmission Line

Tehri Koteshwar generation complex

Uttarakhand

Clean Energy

Renewable energy