The water dispute is just a political battle - the main issue is Bangalore and fear of TN. Bangalore is just too successfull and just too close to TN, and has more Tamils than kannadigas. The Political battle is just a strategy - just to create enemity toward the Tamils and thus making Tamils living as Bangalore seens as not belonging there. The problem with that strategy is that TN is not a weak state economically and population wise compare to karnataka. And tamils have always live near bangalore since ancient time. So before talking about water, the kannadigas stategy and political battle have to be examined in TN. And stop behaving like kannadigas guys, we donot want to copy them- let them pour their venom as much as they want- it is not going to affect us.
