Explanation: The Damodar River is a significant waterway in the eastern part of India, particularly in the state of Jharkhand. It is often referred to as the "lifeline of Jharkhand" due to its crucial role in the state's economy, agriculture, and water supply. The river originates in the Chota Nagpur Plateau and flows through several districts of Jharkhand before joining the Hooghly River in West Bengal.
The Damodar River is approximately 541 kilometers long and is known for its historical and economic significance. It is a tributary of the Hugli River, which is a distributary of the Ganges. The river basin is rich in mineral resources, particularly coal, and is home to several important industrial areas. The river's water is used for irrigation, drinking, and industrial purposes, making it a vital resource for the state.
The Damodar Valley Corporation (DVC) was established in 1948 to manage the river's resources and to control floods in the region. The DVC has constructed several dams and reservoirs along the river, including the Maithon Dam, Panchet Hill Dam, and Tilaiya Dam. These projects have helped in flood control, power generation, and irrigation, further enhancing the river's importance to the state.
In contrast, the Ganges, Yamuna, and Brahmaputra rivers, while significant in their own right, do not have the same direct impact on Jharkhand. The Ganges and Yamuna are major rivers in northern India, primarily flowing through the states of Uttarakhand, Uttar Pradesh, Bihar, and West Bengal. The Brahmaputra is a major river in northeastern India, flowing through the states of Arunachal Pradesh and Assam. These rivers do not play a significant role in the geography or economy of Jharkhand.
Therefore, the Damodar River is the correct answer as it is the lifeline of Jharkhand, supporting the state's agricultural, industrial, and daily life activities.