MBA Entrance Exam

Yes, even after an MBA if you want to do it all over again, you must go through CAT or any other entrance exam.

Cutoff criteria changes every year, last year it was 97 percentile overall with sectional cut off at 91 percentile for general category.

Cutoffs change every year. Previous year for general category, the overall cut-off was 97%ile with 91%ile in each section.
The cut-offs show how niche NITIE is, but just to get things in perspective, NITIE is one of the best colleges in supply chain and operations in India, arguably the best at that.

Hi,
You will be appearing for CAT in 2018. You have enough time to read and practice. Dedicate 100 minutes everyday. Use Arihant Publications books for practice. That will be good and you can score above 90 then and if it is in this session then you do not have time. Prepare from Sample papers first.

Hi,
The last year's NIBM CMAT cut-off was 73 percentile.
The last year's NIA CMAT cut-off was 70 percentile.

There is no such "management quota" at FORE. (I would suggest avoiding those colleges which offer such quota. The reason being, do not waste your money on such colleges). If you are expecting less than 80 percentile in CAT, try for some other B-Schools, but not for FORE. Unless, of course, you have

All 3 entrance exams are good for your selection in different B-Schools like IIM, NMIMS, etc.

You can still take CAT exam. I suppose you still await your semester 5 and 6. Hence, if you are concerned regarding your B.Com score, you can work little harder and shoot your aggregate up with better scores in semester 5 and 6. Nevertheless, you can still apply for CAT.
All the best.

The cut-off is 80 percentile. Also, they take into account the group activity scores and personal interview scores along with your CAT score.

You can select more colleges than 5 that doesn't matter. By selecting the list of colleges your score is directly given to the selected institute.