Explanation: In the context of Indian geography, the drainage system is a critical aspect that helps in understanding the topography and the flow of water across the subcontinent. The Indian subcontinent is drained by two main types of rivers: the Himalayan rivers and the peninsular rivers. The peninsular rivers are further divided into two groups based on their drainage basins: those that drain into the Arabian Sea and those that drain into the Bay of Bengal.
The Bay of Bengal is a significant body of water located on the eastern side of the Indian subcontinent. It is a part of the Indian Ocean and is bounded by India, Bangladesh, and Myanmar. The Bay of Bengal receives the waters of several major rivers, including the Mahanadi and Godavari, which are located in the eastern part of India.
The Mahanadi is a major river in eastern India, primarily flowing through the states of Chhattisgarh and Odisha. It originates in the highlands of Chhattisgarh and flows eastward into the Bay of Bengal. The Godavari, often referred to as the "Dakshin Ganga" (Ganges of the South), is one of the longest rivers in India, flowing through the states of Maharashtra, Telangana, and Andhra Pradesh before emptying into the Bay of Bengal.
The drainage pattern of these rivers is influenced by the topography of the region. The eastern part of India is characterized by a lower elevation compared to the western part, which slopes towards the Bay of Bengal. This geographical feature facilitates the flow of rivers like the Mahanadi and Godavari towards the Bay of Bengal.
Understanding the drainage systems of Indian rivers is essential for various fields, including geography, environmental studies, and civil engineering. It helps in planning water resource management, flood control, and irrigation projects. Additionally, it is a crucial topic in competitive examinations such as the UPSC Civil Services, SSC CGL, and State PSC exams, where questions related to the drainage systems of Indian rivers are frequently asked.
In conclusion, the correct answer is that the Mahanadi and Godavari rivers drain into the Bay of Bengal, reflecting the geographical and topographical features of eastern India.