So currently Krishna is flooding parts of Karnataka while Kaveri basin is dry and there is a huge dispute running between Karnataka and Tamil nadu in regards to Kaveri water.
Many such occurrences keep repeating in India, where some parts are in floods and some parts are in drought. Interlinking rivers is a grand plan that can solve this problem.
Currently there is Telugu Ganga project that connects Krishna to Pennar, and eventually supplies some water to Tamil Nadu. I was wondering if it is possible to send flooding Krishna waters to Tamil Nadu instead of scarce Kaveri water. I looked for maps to see if there is interlinking somewhere that will allow this Telugu Ganga water to eventually reach Kaveri basin in Tamil Nadu. I don’t have much time in my hands so I had to put an end to my search before I can accurately reach a conclusion on this. I think there might be some possible way. Telugu Ganga water reaches up to Poondi reservoir in Tamil Nadu. Kaveri Basin seems close enough to the flows from this reservoir. I also saw some potential links between this and other dams on cauvery in Tamil Nadu. So it might be possible.
So, a possible compromise to handle current Cauvery crisis could be for Karnataka to release more Krishna water into Andhra pradesh. Andhra can in turn release this water to Tamil Nadu through Telugu Ganga. It is a crazy thought, but might be worth thinking out of the box in these hard times.
PS: I found interesting things while I was conducting this search on Cauvery flow and Telugu Ganga flow. Do you know that there is a Water Wiki detailing all water flows, river basins and projects in India?