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The state, because of its location along the Bay of Bengal as well as the Indian Ocean on the coastal region of the Eastern Ghats, has got many rivers flowing within its geographical boundary so as to get drained in those huge water bodies. The network of rivers in this state of south India is formed of many famous rivers and their tributaries and distributaries. Flowing eastwards, all or most of these rivers are completely rain fed and originates from the Western Ghats in India.
Among the several rivers flowing through the state, Kaveri River, with 760 km of length, is the longest among all the Tamil Nadu rivers. Since, it is among the sacred rivers of the country, this river is popularly called the "Ganga of the South" or the "Dakshina Ganga". This rivers flow eastward in this state. From the Hogenakkel Waterfalls, the river flows towards south direction though. Some of the main rivers of this south Indian state can be sub-divided into the following types:
Following are the perennial rivers, which flow through this southernmost region of the Indian peninsula:
Besides these, some of the other perennial rivers that forms a part of the river system of Tamil Nadu are as follows:
Listed below are the non-perennial rivers that are among the different sources of water in the state:
Gundar River: It mainly flows through the districts of Tirunelveli and Virudhunagar in Tamil Nadu.
Noyil River: This tributary of Kaveri flows through Dharapuram taluk and Palladam taluk in Erode district and Coimbatore district respectively.
Suruli River: This originates from the Suruli Waterfall, which is among the major tourist attractions in the Theni district.
Vaipar River: With its origination in the bordering hills of the Kerala state, the river runs through the Virudhunagar district as well as the Theni district.
Apart from the ones mentioned above, following are some of the non-perennial rivers that flow through Tamil Nadu:
To name a few more south Indian rivers serving the inhabitants of the state are Addapar River, Adyar River, Agaram Aru River, Aintharuviar River, Aiyaru River, Aluthakanniar River, Arasalar River, Arichandranathi River, Arjuna River, Bambar River, Coonoor River, Gadananathi River, Gingee River, Goddar River, Gomukhi River, Hanumannathi River, Jambunathi River, Kaattar River, Kabini River, Kallar River, Kamandala River, Karipottan River, Karunaiyar River, Karuppanathi River, Kedilam River, Kollidam River, Komugi River, Kothaiyaru River, Kottagudi River, Kottamalaiyaru River, Koundinya Nathi River, Kowsika River, Kudamurutti River, Kundar River, Kundha River, Malattar River, Manimuktha River, Manimuthar River, Markanda River, Mayura River, Mottaiyar River, Mudikondan River, Mundhal Odai River, Mullaiyar River, Nandalar River, Naganathi River, Nanganjiyar River, Nattar River, Odampokki River, Pachaiyar River, Pahrali River, Pamaniyar River, Pambar River, Pandavaiar River, Parambikulam River, Pykara River, Rajasingiyaru River, Ramanathi River, Sankaraparani River, Sarabanga River, Sarugani River, Shanmuganadhi River, Sigur River, Siruvani River, South Pennar River, Suvetha River, Thennar River, Thenpennai River, Thirumalairajan River, Thirumanimutharu River, Tondiar River, Uppar River, Upper Gundar River, Valavaikkal River, Vanniyar River, Varaganathi River, Vashista River, Vedamaliyaru River, Veera Chozhan River, Vennaaru River, Vennar River and Vettar River.
