M.A

No, the eligibility for M.A in mass communication is minimum 50% in graduation. Must have completed Graduation/ Post-graduation in any discipline with the required percentage. Only passing marks are required for SC/ST candidates.

Yes, you should have a graduation degree and that's all for doing MA.

Yes, you can change your profession to philosophy but only if you feel that it is good for you. Before going into this field, you should analyse this field and find it is compatibility with your interest.
You can find the list of best colleges in India and you can find the information regarding admission, eligibility on the same page:
https://www.shiksha.com/humanities-social-sciences/philosophy/colleges/colleges-india

Yes, you can do MA in psychology after the gap also.

Hi Raj,
As you have completed your graduation and MA as well, so you can pursue B.Ed course. It will be a key of success for you if you want to become a teacher. Also, don't worry about the eligibility. The minimum eligibility criteria is a graduation degree only. Go ahead. Best of luck.

Yes, you are eligible, some of the great universities such as JNU (Jawaharlal Nehru University) offers this program. JNU is among most prestigious university in India. You can go with through this link
https://www.google.com/amp/s/www.shiksha.com/humanities-social-sciences/political-science/course/amp/m-a-in-political-science-jawaharlal-nehru-university-mehrauli-delhi-268820

Yes, you can apply but you should have at least 50% marks in graduation.

Hi Shyamal!
If you want to prepare for JNUEE in M.A. Hindi, then you should solve all the previous year problems. You can get it from the nearby markets. Also these are available online via Flipkart and amazon. Also, give some online tests as well to keep preparations high.
Best of luck.

Now, B.Ed is essential for all teaching posts. For becoming PGT teacher, you have to complete your post graduation.