Which river was the lifeline for the Harappan and Indus valley Civilization. This river is mostly extinct now?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Saraswati river
The Saraswati, praised in the Rig Veda as a mighty river, is widely identified with the Ghaggar–Hakra channel of Haryana, Rajasthan and Cholistan. A large number of Harappan sites, such as Kalibangan, Banawali and Rakhigarhi, lie along this channel, which shows how much the civilisation depended on it. The river dried up long ago and today flows only in the rainy season, if at all.
The Indus was the other great lifeline of the civilisation, and the Jhelum and the Beas are among its tributaries; all three still flow, so none of them fits the second part of the question.