M.A

Different colleges have different fees. government colleges and private colleges have huge fees difference.
You will have to go through the prospectus of the course provided by the college to know more about the admission procedure, fees, eligibility etc.
https://www.shiksha.com/university/dr-c-v-raman-university-bilaspur-31270

Yes, you can definitely go for a psychology course or degree after completing your B.A. Although be sure about what you wish to do after your psychology Masters, in the sense of being a counselor, therapist and there are various other options in the field of psychology.

Hi,
After completing your B.Ed, you will have to qualify for the TET/CET exams. After this, you can apply for teaching jobs. For teaching out of India better go for professorship after doing Ph.D. There process is very difficult. You have to be a recognized doctorate by publishing researches etc.