CMAT

Better than just selecting only one college, I would like to suggest you appear for CAT, MAT and CMAT. This will open the doors of many other good institutes for you.

For general category, cut-off percentile revolves around 94 - 95 percentile. So, you have very less chances to get admission in BK.

Your admission depends on your category.
Cut off percentile for general category of last year was 94 percentile and for OBC category was 76 percentile. So, you can predict your chances accordingly.

4 institutes accepting CMAT scores-
Auro University
S R Luthra Institute of Management
UKA Tarsadia University
C. K. Pithwalla Institute of Management
For more information about colleges check the below link-
https://www.shiksha.com/mba/colleges/mba-colleges-accepting-cmat-Surat.

Yes, CMAT Score is accepted but you have to apply as a All India Candidate quota through DTE Process. And at this %ile you will easily get PUMBA.

Yes, it is valid but the thing is that in which college, you want to take admission? They will see that your marks is above eligibility criteria or not.

Apart from CAT and CMAT there are other college specific exams like SNAP, NMAT, etc. You may give it a shot. Note - all exams for admission in this year are over. Try for next year.

Your score is low, but still you could check the last year's cutoff of IMS, by which you would be able to know whether there is chance of getting admission or not.

The institute specific MBA exam dates and schedule 2018 is about to be released beginning with IIFT MBA entrance exam in July 2018. Close on the heels are the MBA Entrance Exams 2018 Notification Dates for other national level exams to be held with effect from September 2018 to January 2019.