Science

JEE is a joint entrance test for taking admission in engineering colleges. It is not required for B.Sc IT. There are many colleges in Mumbai which offers B.Sc-IT like Jai Hind college, Mithibai college, R J College of B.Sc-IT etc. You will have to be more specific area wise that means which locality are you looking for.

All the subjects have a definite importance. But, you can't be one among so many. Get distinction by good research. It gives you money and fame. Simple Degrees won't bring anything.

Your interest in computer can be pursued in the field of commerce very successfully. B.Sc-IT will not be able to give you as good of a career as B.Com can.
My advice for you is to keep pursuing your interests in computer during your graduation period by doing various related computer courses in your own time like Tally-9, MIS, MS-Excel, etc.

For admission in MS, you may try Australia or UK universities where GPA requirement is low as compared to USA. Because of your low graduation marks, your GPA will be low. While pursuing MS, in second semester, you will have to secure an internship with some company there. After successful completion of the internship, if they offer you a job, then the job letter will ensure work permit and extension of the VISA but to complete the procedure, you will have to return to India once.

No. You may get a college but definitely not a good college. The cut off required in CAT is around 70% and CMAT is around 80% if you are targeting a good reputed college.
If you don't want to give up your dream to get a good college then write MAT, ATMA and MHCET exams coming in Feb/Mar. Perform well in these exams and you will definitely get a good college.
All the best.

Yes you have a good percentile . You should definetly go for HRM. High chance are there for getting call for HRM. All the Best.

Hello, Monika
well getting admission does not only depends on what you score in a national level test, certain other parameters like case analysis, personal interview also plays a key role at jaipuria. And your score is little bit on lower side but not to get disheartened because you'll still have your chances of converting if you secure good mark,And perform well in the. Further process. So all the best for future do well.

Graduation is needed in any discipline with 50% marks followed by CET test.