your calculation ir right except for one thing. the 250 that TN collects does not serve the upper western portion of TN because the rain and collection is downstream. When you taken this into account and make it more accurate, the number comes closer to 192. In fact, this number of 192 is less than what Karnataka has been releasing all this time of 205. Karnataka should be happy because now they release less than in 2005, etc. TN should be happy because now, they can plan their agri industry better.
When there is drought, everybody takes a percentage hit. In otherwords, if water is 10% less overall, then TN gets 10% less, Kar 10% less, etc.
This is actually a disadvantage for north western TN. So for example, if Kar gets 270tmc of rain (this is a drought) and TN get 419 in lower easter portion. Then the commission says that TN has enought water, hence Kar can keep 270tmc. This means that upper western region of TN gets no water as neither Kar will release water or TN can pump water to north western region of TN. At the end, no matter what Indians suffer.
I am neither from TN or Kar but interested in the scientific method. This commission was also called by Karnataka and agreed by TN. They both have the right to appeal but must abide by the ruling until the appeal is successful and not make this into an inter-ethnic war.
