Teacher

Kendriya Vidyalayas select teachers through their own selection process which has recently opened as well. You can check that online. KVs need B.Ed. Did you do B.Ed (Computer Teaching)? If so, you are eligible and you need to go through the specified process of selection.

Special Education Teachers are appointed only through special degrees courses like B.Ed (Special).
I think they will ask for that.

If you want to become a teacher then you need to pursue B.Ed and qualify state TET or CTET.

Yes, you are eligible to pursue this course.

The teaching of psychology isn't present at the school level in India. You can be a School Counsellor in case you are willing to pursue that career.

Kerala or other states conduct their own Teacher Eligibility Test and that make people eligible to join jobs as offered. The screening level TET demands the requisite teaching subject qualification. For TGT, it will demand graduation and B.Ed. PG degree in the concerned subject is needed, in your case, a management degree is what will make you eligible. It is also suggested that the perfect information will come in the application form of Kerala.

Shivanshu,
It can be a deemed or autonomous university or a college, UGC NET and Ph.D remains the requirements for Assistant Professor job. To become a professor, one has to fulfil certain norms other than just being a UGC NET qualified. The experience, number of people guided in research and other particular university norms are followed to make one a professor in real terms. Assistant Professor is the first designation given when one joins the college cadre.

Hi Anushka,
I happened to see your question today only. I am sure you have got to know the answer. After qualifying UGC NET/JRF you will become eligible to become a professor at the college level.

Yes, for Ph.D, you need to qualify the entrance test of the university you aim for. Ph.D admission is easy as you might get preference and shall also be exempted from. The entrance test is a bit competitive.

One has to find a vacancy and apply. Then go through all the set tests or interviews. Remember that UGC NET is the first and basic requirement to become an assistant professor. Qualifying the UGC NET is never a guarantee to become an assistant professor. One has to find, apply and win the job.