Thanks Remi,
I got the Point. Your answer is very helpful. I knew that migrating the Test Scripts from ALM to Solution Manager is a very challenging task and requires lot of re-work.
Now we have decided to start our work on CBTA from scratch for the new projects(whichever comes) and will continue to use TAO for the old projects.
Will appreciate your support if you can provide some documents to Kick start with CBTA.
I have the documents already in SOLMAN Wiki.