Science

For admission in M.Sc food science and technology, you need to have B.Sc in Home Science (B.Tech-Food Technology / B.Sc).

Actually, there is no direct placement after B.Sc Maths. You have to do Masters also to get into a good job. For government jobs you can give SSC after graduation, but the competition is high. Prepare well.

I don't know about cut-off, but I'd suggest not to take B.Sc in mass communication in St. Xaviers, because I am currently a student of Media Science and a former Xaviers student suggested me not to go for it, because it is not good and less importance is being given in college about this course.

Yes, you are eligible to apply.

Yes, you are eligible for 2019 admission.

Yes, you can do that, but you have to first give the English test and personal interview round for further procedure.

Indian Academy Degree College
Oxford College of Science
Jain Global Campus
Reva University
MS Ramaiah University of Applied Sciences.

It depends on your interest. So, if your interest is in software field, then you should go for either B.Sc in computer Science or BCA.