CMAT

Eligibility Criteria for CMAT 2018 Exam
Applicant must be a citizen of India. Final year students of Graduate Courses (10+2+3) whose result will be declared before commencement of admission for academic year 2018-19 can also apply for CMAT online exam.

No Ayushi,
They both are different fields. Their syllabus is totally different from each other.

If the eligibility mentions CMAT, then no matter what the college will consider your application. If it doesn't mention CMAT, then the college is not going to give an exception for you.

Most of the colleges in Gujarat accepts CMAT for MCA admission. There are few more colleges, but you would have to check individually.

Fee structure is different for different colleges under Gujarat University, and hence CMAT may or may not be compulsory. University is very generic and has colleges under it.

Yes, great chances for call. Details on college below:
https://www.shiksha.com/getListingDetail/24474/institute/college-National-Institute-Of-Bank-Management-Nibm-Pune-India.

NIBM has great chances specially, you can also get PGDM at NL Dalmia, Chetana, IES SIES, MET. https://www.shiksha.com/getListingDetail/24474/institute/college-National-Institute-Of-Bank-Management-Nibm-Pune-India.

You have good chances for all the lower end courses and specialisations at Welingkar-Bangalore.

It doesn't accept CMAT but only accepts CAT with 86 percentile and XAT with 80 percentile:
https://www.shiksha.com/mba/course/post-graduate-diploma-in-management-loyola-institute-of-business-administration-nungambakkam-Chennai-187300.

Yes, chances are good enough. For top colleges under CMAT you can refer below in case you don't get it at above Institute:
https://www.shiksha.com/mba/ranking/top-mba-colleges-in-india/2-2-0-0-0.