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| | Saraswati the ancient river lost in the desert |
 | | Several other rivers shifted their courses, some of their tributaries were pirated by neigbouring rivers or severed from their main courses. |
 | | Judged in the broader perspective of geological evolution, disappearance or disintegration of rivers, shifting of their courses, capture of one river by another (river piracy), steady decline of waters culminating in drying up of their beds, are all normal responses to tectonism (uplift, faulting, subsidence, tilting), earthquakes, adverse climate and other natural events. |
 | | Mainly, Indus and Saraswati, were the two major river systems of northwestern India during the Vedic period but the network of their tributaries, some of which are known to have deviated from their initial course or become non-existent today, have given scope for grouping these rivers into convenient classifications. |
| www.ias.ac.in /currsci/oct25/articles20.htm (4076 words) |
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