GS I›G-2.2.1›Himalayan river systems (Indus, Ganga, Brahmaputra)

Himalayan river systems (Indus, Ganga, Brahmaputra)

G-2.2.1Core
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Exam Strategy

UPSC tests source, course, tributaries, and basin characteristics of the three major Himalayan systems through map-based and fact-based questions. Examiner focuses on distinguishing features (Indus westward flow, Ganga's delta, Brahmaputra's length in India) and interstate water-sharing implications. Common errors: confusing tributary origins, misstating river lengths, or misidentifying border rivers.

High-yield hooks
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Indus flows west to Pakistan, Ganga south to Bay of Bengal

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Brahmaputra: longest Himalayan river in India, flows northeast

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Ganga tributaries: Yamuna (right), Ghaghra, Gandak (left)

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Indus tributaries: Sutlej, Chenab, Ravi, Beas (all in India)

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All three originate in Tibet/Himalayas, three different directions

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SCANGEOGRAPHY/RIVER-SYSTEMSINTERNATIONAL-RELATIONS/WATER-TREATIESENVIRONMENT/WATERSHED-MANAGEMENT