The correct answer is: A. Sal-II
The Sanjay Vidyut Priyojana is an underground hydroelectric project located in the Sal river basin in the state of Himachal Pradesh, India. The project was originally named the Sal-II project, but was renamed in 1989 after Sanjay Gandhi, the son of former Indian Prime Minister Indira Gandhi.
The project consists of a 1,000-meter-long tunnel that diverts water from the Sal river to a power station located 1,500 meters below ground. The power station has an installed capacity of 300 megawatts and generates electricity for the state of Himachal Pradesh.
The project was completed in 1993 and has been in operation since then. It is one of the largest underground hydroelectric projects in India.
The other options are incorrect because:
- Bhaba is the name of a nuclear research facility in India.
- Malana-I is the name of a hydroelectric project located in the Malana river basin in the state of Himachal Pradesh.
- Neogal is the name of a river in the state of West Bengal.