Teaching & Education

Both courses are designed for Elementary Teacher Training i.e. upper primary (Class VI to VIII). You can join D.Ed or D.El.Ed course after class 12th (Senior Secondary).
If you qualified D.Ed or D.El.Ed after 10+2, you can apply in TET Exam (Paper I) I.e. for Primary Stage teachers.

JBT is similar to D.El.Ed. (Diploma in Elementary Education) course. JBT and D.El.Ed courses have a similar syllabus, course structure, and career prospects.

Complete your MA in Economics and B.ed this will help you sustain as a lecturer. PGD Education overview by IGNOU.
The programme has been developed to meet the ever increasing demand for trained manpower inadministrative and management position in various educational systems and organizations. Theprogramme has been designed to provide a comprehensive view of the theoretical as well as practicalaspects of educational management and administration in the existing and emerging educationalscenario.

You have completed your graduation and Masters in commerce. Definitely, you should have enough command in your subject. It will be more convenient to you to apply for commerce subjects. But, if you have enough confident in English, and you think that you can carry the subject, then you can apply for English subject.

You have to complete graduation to do B.Ed. I think, before polytechnic, you have completed 10+2. So, you are not eligible for B.Ed. But, you can do D.El.Ed, if you have 50% marks in 10+2.

Yes, you are eligible to get admission for B.Ed, as you have 52% marks in PG. Minimum 50% marks either in graduation or Masters is sufficient. You belong to OBC category, so you will get some relaxation in your percentage.

D.Ted is Diploma and B.Ed is a Bachelor's degree. As you have completed your graduation, you are advised to do B.Ed. with this, you can apply for TGT in future.

Minimum required percentage for B.Ed is 50% marks, either in graduation or masters. For reserved category, it is 45% marks.

Although you have completed your graduation, you will not be able to be a TGT until and unless you will not complete your B.Ed. First you have to complete your B.Ed, till then your Masters will complete and you will be eligible for both TGT and PGT.