Hlo aspirant,

The eligibility criteria of CAT is :

1. Hold bachelor degree with 55% marks

Or

2. CA

Having a CA helps in building a good profile for IIM only if your average score in IPCC and Final combined is 60+. ...

But passing percentage of CAis low .But my personal advice is that you should do graduation along with CA for getting good college.

Hope this answer is helpful for you.