Explanations:The Mahanadi is a significant river in the eastern part of India, particularly in the state of Odisha. It is the third-largest river in India in terms of annual flow and plays a crucial role in the agricultural and economic activities of the region. The river originates in the state of Chhattisgarh, specifically in the highlands of the Dandakaranya region, and flows through Odisha before emptying into the Bay of Bengal.
The Mahanadi river system is characterized by its extensive network of tributaries, which include the Seonath, Hasdeo, Jonk, and Ong rivers. The river basin covers an area of approximately 141,600 square kilometers, making it one of the most important river basins in India. The river is also known for its significant contribution to the irrigation and hydroelectric power generation in the region.
Understanding the geography of Odisha and the major rivers that flow through it is essential for students studying the region. The Mahanadi is a key feature of Odisha's geography and is often a topic of interest in examinations that assess knowledge of Indian geography, such as the UPSC, SSC, and State PSC exams. It is important to distinguish the Mahanadi from other major rivers in India, such as the Ganga, Yamuna, and Godavari, which do not flow through Odisha.
The Ganga, for instance, is a major river in northern India, primarily flowing through the states of Uttarakhand, Uttar Pradesh, Bihar, and West Bengal. The Yamuna, a tributary of the Ganga, is located in northern India, primarily in the states of Uttarakhand, Himachal Pradesh, Haryana, and Uttar Pradesh. The Godavari, another major river, flows through the states of Maharashtra, Telangana, and Andhra Pradesh, and does not pass through Odisha.
Therefore, the Mahanadi is the correct answer as it is the major river that flows through and drains into the Bay of Bengal in Odisha. This river system is a vital part of the state's geography and plays a significant role in the region's economy and ecology.