Colleges in Mumbai

First and foremost, you must write entrance exams like MAT, CMAT, CAT, XAT, etc., for joining any of the colleges for MBA course. You must have the scoreboard of any of this entrances and apply to that particular college and they will call you for Group Discussion and Personal Interview, and then, at last, they will announce the results.

Yes, NMIMS considers only NMAT score which is conducted from October to December. You can give 3 attempts. There is no negative marking in NMAT. A score of 210 is eligible for the Mumbai campus and 190 for Bangalore and Hyderabad campus.

You don't really have to submit your scores because you will now be selected on the basis of your performance in your GD-PI. If you still want to submit it, you must come to the college and submit.

Hi,
Kindly refer to the link mentioned below:
https://www.shiksha.com/accounting-commerce/colleges/m-com-colleges-mumbai
For admission procedure, you can check out their criteria after that you can apply for the same.
Thank you.

Hi Harsh,
Since, you want to pursue chemical engineering, so the best college other than IIT-Mumbai is ICT-Mumabi. For this, you need to take MHCET exam and score really well in that.
All the best.

IBS-Mumbai is better.

Admission for MMS will be through the CAP rounds conducted by DTE, keep checking the DTE website for updates.
CAT scores are equated and you need to score really high to stand a chance for admissions. All the Best!