Which river is the largest tributary of the River Ganga?
a) Kosi
b) Gomti
c) Yamuna
d) Ghaghara
Answer: c) Yamuna
Explanation
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Yamuna: Flowing over a length of 1,376 km, the Yamuna is the longest and largest right-bank tributary of the Ganga. It originates from the Yamunotri Glacier on the southwestern slopes of the Banderpoonch peak in Uttarakhand and merges with the Ganga at Prayagraj (Triveni Sangam).
Overview of Other Options
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a) Kosi: A major left-bank tributary originating in Tibet; notorious for frequent course shifts and devastating floods, earning it the title “Sorrow of Bihar.”
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b) Gomti: A left-bank tributary of the Ganga that uniquely originates from a lake (Gomat Taal/Fulhar Jheel in Pilibhit, UP) rather than a glacier.
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d) Ghaghara: A major perennial left-bank tributary originating near Lake Manasarovar in Tibet; it is the largest tributary of the Ganga by water volume.
