I belong to a middle class family and I have done 10th class from CBSE board. I want commerce stream in 11th. Should I go ahead with it?

Yes, you can take commerce stream and you can do CA with your graduation B.Com ), B.A. is a costly course aur you can prepare for CAT and by clearing it you can do MBA with scholarship, if you have done good. Your middle class family can easily take this, but you just have to score good.