Thenpennai River

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Thenpennai River flows into Ponnaiyar , which it joins at N 12° 9′ 46″, E 78° 38′ 48″ at OSM node n1202133226, and there 317 km of total upstream flows in. load it's distributaries

Thenpennai River has 3 tributaries.

• Ponnaiyar, which joins it at N 12° 11′ 21″, E 78° 25′ 55″ at OSM node n1202133792, and 231 km of total upstream flows in.
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• (unnamed), which joins it at N 12° 9′ 45″, E 78° 34′ 56″ at OSM node n1202134007, and 33 km of total upstream flows in.
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• Pambar, which joins it at N 12° 11′ 39″, E 78° 34′ 30″ at OSM node n1202134044, and 29 km of total upstream flows in.
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