No stay cool. We want some companies to move to cities in TN which will get a better water supply. Cauvery water will not be shared with Maharashtra or West Bengal. Hence no advantage to the companies if they move to Kolkata, Pune or Mumbai!!
Just kidding. :-)
The truth is that if the Indian population continues to grow at its current rate and the rains fail every alternate year, no amount of water from any river will be enough for us.
We have to look at all factors leading to growth and progress of the people of TN, Karnataka, Kerala & AP.