The correct answer is: b) Kerala.
The Pallivasal Hydroelectric Project is a run-of-the-river hydroelectric project located in the Idukki district of Kerala, India. It is the first hydroelectric project in Kerala and was commissioned in 1940. The project has an installed capacity of 120 MW and generates an average of 360 million units of electricity per year.
The project is located on the Periyar River and uses a diversion dam to divert water to a power station located downstream. The power station has four Francis turbines, each with a capacity of 30 MW. The project also has a 10.5 km long headrace tunnel and a 1.5 km long tailrace tunnel.
The Pallivasal Hydroelectric Project is a major source of electricity for Kerala. It also provides irrigation water to about 10,000 hectares of land and drinking water to about 100,000 people.
The other options are incorrect because:
- Option a) Tamil Nadu is incorrect because the Pallivasal Hydroelectric Project is located in Kerala.
- Option c) Karnataka is incorrect because the Pallivasal Hydroelectric Project is located in Kerala.
- Option d) Andhra Pradesh is incorrect because the Pallivasal Hydroelectric Project is located in Kerala.