Dear Ravi, Check the facts. Cauvery river flows in three districts of karnataka (Coorg, Mysore and Mandya) whereas it flows in 9 districts of Tamilnadu namely Dharmapuri,Salem,Erode,Karur,Trichy,Tanjore,Tiruvarur, Nagapattinam,Kumbakonam and merges in Bay of Bengal at Kaveripoompattinam(Pondicherry). The land cultivated with Cauvery in TN than that of Karnataka geographically. Cauvery is not a major river when compared to Krishna in Karnataka(but it is projected in contrary to the fact). Coorg is hilly and has less agricultural land whereas the two districts namely Mysore and Mandya rely on Cauvery for agriculture. But in Tamilnadu, cauvery flows in highly cultivated 8 districts (these lands are irriagted for thousands and thousands of years). In fact, Karikala cholan built Kallanai(stone dam) 1700 years ago across Cauvery(this is the oldest usable dam in the world today).
