Hello,

Entrance test of CAT is based on graduation degree, not on 10 or 12th standard qualifications, having said that even if you'ad supply in 10th, you've qualified it successfully afterwards and that's why you have been able to do further studies.

To be eligible for CAT, one needs to have passed graduation in any discipline from a recognized university with 50% marks for General Category and there's relaxation of 5% for SC/ST/PWD, they require only 45%.

And coming to the colleges, it may be difficult for you to get into top B-Schools among IIMs, but every IIMs have different weightage like some don't even consider 10th marks, gives more weightage to CAT scores and work experience, the weightage given to different sections vary and moreover, there are also other B-Schools which are extremely good apart from IIMs where you can apply such as FMS, MDI, XIM,K J Somaiya, IMT etc.

It's not clear from your question, if you have done graduation or still pursuing it, what's done is not something you can change, work on scoring good marks in graduation as well as CAT.

All the best!