M.Sc

Yes, you can appear in M.Sc in physics. In most colleges and universities, it is generally recommended to maintain an attendance of not less than 75 percent to sit in the exams.

Yes, since you have completed your B.Com, you can apply for Masters in clinical psychology. It is a very good path of study.

Since you have done your Bachelors in science in paramedical technology. It would be best for you if you choose to do your Masters in any related field and succeed there.

The eligibility criteria of M.Sc Forensic Science is given below.
Eligibility: Pass with 60% aggregate marks in B.Sc. (Forensic Science or Biology or Physics or Chemistry or Biochemistry or Microbiology or Biotechnology or Medical Lab Technology) or B.Pharma. Or MBBS or BDS or BHMS or B.A. MS or equivalent. Therefore, you can be eligible for this programme.

You need to have at least more than 60 percent in both class 10th and class 12th and also, in your M.Sc level in order to be eligible to apply for M.Sc in Stella Maris.

Yes, there are many institutes providing M.Sc in nursing at a low cost. For that, you need to apply for the scholarship and give GRE exam. Then only you will be able to study it abroad.