National Insurance Academy- NIA

There are at least 60% marks for the admission.

Check out the detailed admission procedure below :
https://www.shiksha.com/mba/course/post-graduate-diploma-in-management-national-insurance-academy-balewadi-Pune-23548.

You have got good MAT percentile. You can apply to colleges like ITM group, IIBS Pune, ISME, Bangalore. Xavier University, Christ University, VIT Business School, etc. which are some of the best institutes.

Hi,
Candidates in the above course are selected based on score/percentile obtained in CAT/ CMAT, past academic record and performance in group discussion and personal interview.
As per your 12th score, it is difficult to get a call from any good college.
https://www.shiksha.com/mba/course/post-graduate-diploma-in-management-national-insurance-academy-balewadi-pune-23548

Well, the weightage that they follow is as follows:
Past academics - 20%
CMAT/CAT - 50%
GD/PI - 30%
Also, students with relevant work experience will be given preference. So my opinion to you is to apply anyway. Because, your past academics show an average rating while you have a decent score in CMAT. So, I think your CMAT score will compensate for your academics. Apply if you are shortlisted, do well in the GD/PI session. All the best.
http://www.pgdm.niapune.org.in/admissions/adminssion-procedure.

You have strong academic profile, and also ample working experience .Chances are high to get a call. All the best.

Yes, you can get a call based on your academic record.