Q. Hindon River, recently seen in news, is tributary of which river?
Answer: Yamuna
Notes: The National Green Tribunal (NGT) has instructed the Uttar Pradesh Pollution Control Board (UPPCB) to present an additional report within two weeks on Hindon River pollution, detailing actions against polluting municipal bodies. Hindon, a Yamuna tributary, spans 400 km from Saharanpur to Noida. Urban, agricultural, and industrial waste have rendered it one of the most polluted stretches in the Ganga basin. In 2015, CPCB declared it a 'dead river,' unfit for bathing.

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