M.A Maths

PGT is Post Graduate Teacher designation and for sure you will be taken as a PGT English. B.Ed shall support your getting selected as a Teacher. Your B.Ed is for TGT Level Job. Post Graduation for PGT.

Both are degrees with a difference under which department/faculty (Arts or Science) they are in.

No, you can not. In the same year, you can not enroll your name under the same or different university. After completion of your B.Ed, you can enroll your name for any other course.