Explanation: To understand the context of the question, it is essential to know the geography of Northeast India and the significance of the Brahmaputra River. The Brahmaputra is one of the major rivers in India, originating in Tibet and flowing through the states of Arunachal Pradesh and Assam before entering Bangladesh. It plays a crucial role in the region's economy, agriculture, and transportation.
Guwahati, the largest city in Northeast India, is located on the southern bank of the Brahmaputra River. It is the capital city of Assam and serves as a major commercial and cultural center. The city's strategic location on the river has made it a hub for trade and commerce, connecting the region to the rest of India and beyond. Guwahati is also an important educational and industrial center, with several universities and industries contributing to its economic growth.
Hyderabad, on the other hand, is a major city in the southern state of Telangana. It is located on the banks of the Musi River and is not in the Northeast region. Gwalior is a city in Madhya Pradesh, located in central India, and is not associated with the Brahmaputra River. Therefore, these options are incorrect.
The question tests the knowledge of the geography of Northeast India and the significance of major cities and rivers in the region. Understanding the location and importance of Guwahati in relation to the Brahmaputra River is crucial for answering this question correctly. This knowledge is relevant for various competitive examinations that test general knowledge and geography, such as the UPSC, SSC, State PSC, and Bank PO exams.