MMS Eligibility

Its difficult. But, again, you can make it with 78 percentile on Hindi linguistic minority.

Hello Rishi,
JBIMS doesn't accept GMAT score. The name of exam you are asking is MBA/MMS CET.

Yes, there are chances.
All the best.

I would like to tell you that you stand a chance as good as anyone else's as SIES don't select candidates based on their scores in entrance exam. It's just a entry pass to SIES. But you'll have to perform well in the GD PI.
Wish you all the best

With Open category it is difficult but you can try with linguistic minority i.e Hindi, there are chances.

I didn't understand what you want to know, your GMAT query and JBIMS have no connection. If you are looking for MMS 19-21 batch with JBIMS, then you need to give CET buddy,

It does not matter you have engineering, B.Sc or B.Com degree, all are eligible to take the exam and prove their potential. If you are capable of getting that one seat than it is definitely good for you to join JBIMS because you have proved your potential to compete by securing that seat. For your knowledge, yes students over here are of great mix, some from B.Sc. B.Com LL.B.Pharma, etc. Believe in your potential and never doubt your degree as ever degree gives you certain skills which upscale you from others.
You need to be hitting top 40th rank in MHT CET for open category.
Hope I helped!