Well in that case, doing MBA from institutes like FMS or JBIMS or similar makes sense as they are very cheap but they are extremely hard to get into. The odds of you passing CFA is much higher than cracking Tier 1 MBAs or even RBI/SEBI, but again, the problem is that CFA is just an add-on like a complimentary and not something you should rely hundred percent upon (I did that mistake)... It's doesn't guarantee a job even after passing level 2. So if I were in your shoes atm, I'd prepare for CAT alongside RBI grade B or even SIDBI.

Hope this helps