The Peninsular drainage

Describe the main Peninsular rivers.

Older than the Himalayan system: broad, graded, shallow valleys; fixed courses; non-perennial.

Evolution: subsidence of the western flank, trough faulting (Narmada, Tapi), tilt to the south-east.

Godavari (Dakshin Ganga): largest, 1,465 km. Krishna 1,401 km. Mahanadi 851 km.

Kaveri: 800 km, flows all year (rain in both monsoons).

Narmada (1,312 km) and Tapi (724 km) flow west in rift valleys to estuaries; Luni is ephemeral.

Old rivers, mostly eastward, mostly rain-fed.

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