The river systems of India are divided into two categories (i) Himalayan Rivers and (ii) Deccan Rivers or Peninsular Rivers. ,
Himalayan rivers are those rivers which have origins in Himalayan mountains.
Himalayan rivers are divided into the rivers of Indus Basin, Ganga and Brahmaputra Basin.
Rivers of Indus Basin–
The rivers of Indus basin are drained the Indus and its tributaries are The Jhelum, Chenab, Ravi, Vyas Satluj. The Indus rivers originates from the Mansarovar lake in Tibet. It flows westward direction and turns into southward near Gilgit and enters Pakistan. After covering the distance of nearly 2900 kilometer it falls in the Arabian Sea near Karachi.
The Rivers of Ganga Basin-
The river Ganga originates from the Gangotri glacier in the Uttarakashi district of Uttaranchal. After passing through the states of Uttaranchal, Uttar Pradesh, Bihar and West Bengal and forming the world’s biggest delta it falls in the Bay of Bengal. The tributaries of the rivers Ganga are-The Yamuna, Ramganga, Gomti, Sharda, Saryu, Gandak etc. The most important and the most sacred river of India is the Ganga.
The Rivers of Brahmaputra Basin–
The river Brahmaputra originates from the lake Mansarovar in Tibet and flows north-eastern direction and enters in India in Arunachal Pradesh and descends Assam valley. It forms the world’s biggest delta at the mouth of the river and falls in the Bay of Bengal. Main tributaries of the river Brahmaputra are-The Tista, Swaruashree, Lohit and Dihang. Brahmaputra river in Bangladesh is known as Yamuna.
Rivers of Peninsular India-
The most important rivers of peninsular India are Godavari, Krishna, Kaveri, Mahanadi, Tapti and Narmada. These rivers are catagorised into west flowing and east flowing rivers. East flowing peninsular rivers fall into the Bay of Bengal, Mahanadi, Godavari, Krishna and Kaveri are the east flowing rivers. Tapti and Narmada are west flowing rivers which fall in the Arabia Sea.
Some important Peninsular rivers also flow in the north direction which are Chambal, Betwa, Ken and Sone. First three rivers fall in the river Yamuna and the last one fall in the Ganga. At the western coast Mandavi and Juari in Goa; Kalindi, Sharawati ai Netravati in Karnataka, Ponnar; Periyar and Pamba in Kerala are some important rivers of South India.