Patel Engineering Wins Rs 230.70 Crore Dorjilung Hydropower Project Contract in Bhutan

Patel Engineering Limited has received a Letter of Award from Dorjilung Hydro Power Limited for Package I pre-construction works of the 1,125 MW Dorjilung Hydroelectric Power Project in Bhutan. The contract is valued at Rs 230.70 crore. Dorjilung Hydro Power Limited is a joint venture between Druk Green Power Corporation Limited and Tata Power Company Limited.

The Dorjilung Hydroelectric Power Project is a landmark initiative in Bhutan’s energy sector, and is Bhutan’s largest hydro project under the Public–Private Partnership (PPP) model, designed to fully support the nation’s domestic energy aspirations while enabling the export of surplus clean power to India, thereby strengthening regional energy security. Patel Engineering Ltd. recognizes the strategic importance of this project and is proud to play a role in its execution.

Under Package I, PEL will execute the civil and hydromechanical works for the Dorjilung Hydroelectric Power Project. The scope includes construction of two diversion tunnels of 11.0 m diameter with lengths of 930 m and 821 m, an intermediate adit of 7 m finished diameter and 116 m length, and a highway road tunnel of D-shaped cross section measuring 11 m × 7.5 m and 500 m in length. Additionally, the package covers hydromechanical works comprising four sets of vertical lift fixed wheel gates.

The construction period is set at 300 days, with a Defects Notification Period of one year. The project site is strategically located about 7 km from Autsho town in Mongar Dzongkhag, Bhutan, making it a critical infrastructure development in the region.

Commenting on the development, Kavita Shirvaikar, Managing Director, said, “We are delighted to have been entrusted with this prestigious project. Hydropower is a cornerstone of Bhutan’s energy future, and we see this as an opportunity not only to deliver world-class engineering solutions but also to strengthen our long-term partnership with Bhutan in the renewable energy sector. Patel Engineering is actively exploring further opportunities in hydropower development in Bhutan and other neighboring countries, reaffirming our commitment to sustainable growth and regional collaboration”.

With this achievement, Patel Engineering Ltd. continues to expand its footprint in the renewable energy sector, reinforcing its vision of building resilient infrastructure that supports clean energy transitions across India and outside.