Mr.Manjunath, The total length of Cauvery river is itself 475 miles. Kindly check the units. I am talking in miles and you are talking in kilometers. Morover, 320 kms that you have mentioned include a 116 km(72 miles) artificial channel. So naturally cauvery flows for a length of ~204 kms whereas it flows in 416 kms (as you have mentioned) naturally in Tamilnadu. Morover, its the extent of cultivated land that is taken into account. In this case, tamilnadu's extent of cultivated land is much more that of Karnataka. I am sure yield is least considered as naturally it would be higher for the place it originates (common for all rivers). Its only the amount of usage that is primarily taken into consideration. I again stress that any project including increasing the dam's height will certainly affect the lower riparian states and NOT the vice versa. Morover, why dont you take into consideration 12 dams that Karnataka built along with KRS and Kabini. If we include all the dams, the amount of stored water will be much more than that of mettur. I wish to point out that Mettur reservoir(though huge one) is never full except during south west monsoon when KN releases the excess water to avoid flooding. Have you ever seen cauvery basin in Tamilnadu, Mr. Manjunath?.
