The correct answer is: A. Baira
The Baira Siul Hydroelectric Project is a run-of-the-river hydroelectric power plant located on the Baira River, a tributary of the Ravi River in Himachal Pradesh, India. The project has an installed capacity of 100 MW and was commissioned in 2008.
The Siul River is another tributary of the Ravi River. It originates in the Dhauladhar Range and flows through the Chamba district of Himachal Pradesh. The Siul Hydroelectric Project is a 150 MW run-of-the-river hydroelectric power plant located on the Siul River. The project was commissioned in 1999.
The Bhaledh River is a tributary of the Siul River. It originates in the Dhauladhar Range and flows through the Chamba district of Himachal Pradesh. The Bhaledh Hydroelectric Project is a 25 MW run-of-the-river hydroelectric power plant located on the Bhaledh River. The project was commissioned in 1998.
Therefore, the Baira Siul Hydroelectric Project is constructed on the Baira River, which is a tributary of the Ravi River.