Psychology

Hi,
I am also from ICSE board and I will suggest you Biotechnology because it is a very vast subject and it carries different fields in it.
All the best.

Educational:
1. For Bachelor program in psychology, you need to pass class 12th.
2. For Post graduate courses in psychology, you need to have Bachelor's degree in psychology.
3. For Ph.D/ M.Phil, you need to have PG or Diploma in psychology.
Hence, it would be difficult to get admission in PG as you do not have the graduation in the same field.

Yes, TISS is one of the most reputed B-Schools, you will definitely get a good job and have a secure future as well.

What do you want to know about Diploma in clinical psychology?

Yes, you can go for psychology even after being a commerce student as this is a study of human behavior, thoughts and modalities which don't require a person to have a special booking knowledge prior to graduation. Practice matters the most here.

No, if you are from home science, go in for human development. You can pursue your career in counselling as you can do D.Ed and teach primary section and B.Ed to teach secondary and junior college.