MBA Entrance Exam

Admission to FMS for an MBA is via the CAT entrance exam. Candidates will be called for Group Discussion based on percentile obtained in CAT. Interested candidates can apply online with the required information. Shortlisted candidates will be called for Extempore Test based on performance in GD. For further information regarding admission and eligibility to an MBA programme from FMS, please refer to the link provided below:
https://www.shiksha.com/mba/course/master-in-business-administration-faculty-of-management-studies-university-of-Delhi-north-campus-111548

Though CAT opens most of the opportunities for you, you can still go for many of the colleges like Amity University has its own test, and IBS too.

There are three big players for CAT coaching in Indore, TIME, CL and CH-EM. From my personal experience and talking to my friends who joined one of these coachings, TIME is better than other two (specifically talking about Indore). Though you may probably need a CL/IMS test series along to really taste the CAT. That's because level of coaching at TIME is way above the level of CAT. CL and IMS are closer.
Regards.

With this score and academic background you are eligible for Christ University.

You can ask CAT related doubts on Shiksha Ask and Answer Platform. You will get the apt solution for your query.

Top MBA colleges in India accepting MAT scores are mentioned at the link provided below. This ranking is based on rankings published by The Week, Business Today and National Institutional Ranking Framework (MHRD).
https://www.shiksha.com/mba/ranking/top-mba-colleges-in-india-accepting-mat/2-2-0-0-306

Being honest, it's difficult because currently, Kirloskar has changed their admission criteria and as per you score it's difficult to get the admission.

If you are willing to get admission for MBA-Pharma Biotechnology and you are a home university student then you'll need more than 85 percentile in ATMA and for Other than Home University you'll need to score more than 90 percentile. If you If you wish to pursue MBA+ then ATMA score will not be considered from this year for MBA+ admission. Admission will be on the basis of MAH-CET and other national MBA entrance tests.

You can't do MBA after your 12th. You need a suitable degree before doing any Masters. So, check for colleges to do your BBA or engineering or any other management degree if possible.

MMS program is all depend on the ranking in ACAP round, but chances are there as your percentile is also good, and you belong to ND-OBC category.