The correct answer is: A. Koel-Karo Project
The Koel-Karo Project is a multipurpose river valley project on the Koel River in Jharkhand, India. The project was initiated in 1972 and is currently under construction. The main objective of the project is to provide irrigation to about 1.2 million hectares of land in Jharkhand and Bihar. The project also includes the construction of a dam, a reservoir, and a power plant.
The Tilpara dam is one of the components of the Koel-Karo Project. The dam is located on the Koel River, about 100 kilometers from Ranchi, the capital of Jharkhand. The dam is 100 meters high and has a storage capacity of 1.2 billion cubic meters. The dam is used for irrigation, flood control, and power generation.
The other options are incorrect because they are not related to the Koel-Karo Project. The North Koel Project is a multipurpose river valley project on the North Koel River in Jharkhand. The Mayurakshi Project is a multipurpose river valley project on the Mayurakshi River in West Bengal. The Kanhar Reservoir Project is a multipurpose river valley project on the Kanhar River in Chhattisgarh.