The correct answer is: B. Rohtak.
The Kakroi Hydel Project is a hydroelectric power project located on the Yamuna River in the state of Haryana, India. The project was commissioned in 1982 and has an installed capacity of 100 MW. The project consists of a dam, a power station, and a canal. The dam is located on the Yamuna River near the town of Kakroi. The power station is located downstream of the dam. The canal is used to divert water from the Yamuna River to the power station.
The Kakroi Hydel Project is a major source of electricity for the state of Haryana. The project also provides irrigation water to farmers in the region. The project has had a positive impact on the economy of the region.
The other options are incorrect because:
- Panipat is a district in the state of Haryana. The Kakroi Hydel Project is not located in Panipat.
- Rohtak is a district in the state of Haryana. The Kakroi Hydel Project is located in Rohtak.
- Sonipat is a district in the state of Haryana. The Kakroi Hydel Project is not located in Sonipat.
- Gurugram is a district in the state of Haryana. The Kakroi Hydel Project is not located in Gurugram.