the lack of water is an opportunity cost and stop electricity and see the cost.
Karnataka (as with all Southern States) only think about themselves. The drought in TN is much worse than in Karnataka. The water sharing formulae is fair. Even Vajpayee came up with a great formulae but Karnataka didnt accept it.
Karnataka has always been anti-Tamil. I suspect thats largely because of the history of Tamils which is older and prestigeous in general. Kannadas have always had inferior complex and their treatment of Tamilians in Bangalore in general is shocking.
I am not a Tamilian or South Indian but tired of all these Southern States fighting over each other. If Karnataka could have it their way, they won't give up any water.