Indus Ganga and Brahmaputra are placed in which category?

Correct answer: Himalayan rivers

Direct answer: Option D is correct. The Indus, Ganga and Brahmaputra are major Himalayan river systems. They are called Himalayan rivers because their sources and upper courses are connected with the Himalayan or trans-Himalayan mountains, and many receive water from glaciers, snowmelt and rainfall. Step by step: these rivers begin in or near the Himalayan region; they cut deep valleys and carry water throughout much of the year; they flow across the northern plains; they form large drainage systems. Option A is wrong because peninsular rivers mainly arise from the Peninsular Plateau, not the Himalayan region. Option B is wrong because these rivers are not short coastal streams; they travel long distances inland. Option C is wrong because they are not merely dry desert channels and carry substantial water. Option D is correct because it names their geographical class. Memory cue: Indus–Ganga–Brahmaputra is the great Himalayan trio.