Main water divide formed by Western Ghats. Run north to south close to the western coast. Most of the major Peninsular rivers except Narmada and Tapi flow from west to east, also they flow through Rift valley. Chambal, the Sind, the Betwa, the Ken, the Son, originating in the northern part of the Peninsula belong to the Ganga river system. Mahanadi, the Godavari, the Krishna and the Kaveri flow eastwards and drain into the Bay of Bengal, absence of meanders and non-perennial flow of water. Narmada and the Tapi are the only long rivers, which flow west and make esturies. Evolution Subsidence of the western flank of the Peninsula leading to its submergence below the sea during the early tertiary period. Generally, it has disturbed the symmetrical plan of the river on either side of the original watershed. Upheaval of the Himalayas when the northern flank of the Peninsular block was subjected to subsidence and the consequent trough faulting. The Narmada and The Tapi flow in trough faults...
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