Which river is known as the 'Sorrow of Bihar'?
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This question examines an important Bihar General Knowledge fact: “Which river is known as the 'Sorrow of Bihar'?” The correct answer is Kosi. The Kosi river is called the 'Sorrow of Bihar' because of its destructive flooding. It is one of the most flood-prone rivers in the world, changing its course frequently and causing widespread devastation in northern Bihar every year. The Kosi originates in Tibet and flows through Nepal before entering Bihar. Historically, floods from the Kosi have caused massive loss of life, displacement of people, and destruction of crops and property. The Ganga is the main river of Bihar but is not associated with sorrow.