India’s river systems can be classified into four groups: - The Himalayan Rivers - Deccan Rivers - Coastal Rivers - Rivers of the inland drainage basin The entire country has been divided into 20 river groups, comprising 12 major basins and eight composite river basins. The 12 major river basins are: - Indus - Ganga-Brahmaputra-Meghna - Godavari - Krishna - Cauvery - Mahandi - Pennar - Brahmani-Baitarani - Sabarmati - Mahi - Narmada - Tapti Read More on [[Rivers of India]]