Q.Which one of the following states of India experiences floods frequently?

Floods in India are closely tied to river systems and their tendency to overflow during heavy monsoon rains. Among the states listed, Assam stands out because the Brahmaputra and its many tributaries carry enormous volumes of water, and the region's topography and rainfall patterns make flooding a recurring, severe problem. While Bihar, West Bengal, and Uttar Pradesh also face floods in certain districts, Assam's entire riverine geography is especially vulnerable, with large areas submerged almost every year.

• Assam's floods are driven by the Brahmaputra and its tributaries, which swell rapidly during the monsoon.
• The state's low-lying plains and heavy rainfall compound the risk, making floods a regular annual event.
• The other states experience floods too, but not with the same frequency and intensity as Assam.

Floods in India are not a rare calamity; they are a seasonal rhythm for several states. But when you ask which state faces them most often, the answer is Assam. The reason lies in geography. Assam sits in the valley of the Brahmaputra, one of the mightiest rivers in the world, which enters India from Tibet and then flows through the narrow, low-lying plains of the state before joining the Ganga in Bangladesh. The river carries an enormous volume of water and sediment, and during the monsoon, when rainfall is heavy and the snow melts in the Himalayas, the Brahmaputra swells beyond its banks. Its tributaries — the Subansiri, the Manas, the Dhansiri, and many others — also rise together, and the entire valley gets submerged.

This is not an occasional event. Almost every year, large parts of Assam face flooding, sometimes multiple times in a single monsoon season. The floods destroy crops, wash away homes, displace people, and disrupt transport and communication. The state's geography makes it particularly vulnerable: the valley is flat, the river's slope is gentle, and the banks are often not high enough to contain the water. Moreover, the river constantly changes its course, eroding banks and creating new channels, which adds to the unpredictability.

Now, the other states in the options also face floods, but not with the same regularity or severity. Bihar experiences floods in the Kosi and Gandak regions, and West Bengal suffers from the Ganga and its deltaic rivers, especially during cyclones. Uttar Pradesh has flood-prone areas along the Ganga and Yamuna. But none of these states has a river system that overflows as consistently and as extensively as the Brahmaputra does in Assam. The frequency and scale of flooding in Assam are unmatched.