I am a B.Com and have done PG from international college, do I require B.Ed or D.Ed? I am now a teacher.

For becoming a school teacher, B.Ed /D. Ed is compulsory now. Or, if you want to be a lecturer/professor, there is no need to do so. You have to qualify NET/SET exams etc.

Wherever you come from, it is most important to get a B.Ed. This is for becoming a regular teacher. There are no problems for ad-hoc jobs.

Yes, you should definitely pursue B.Ed, as it will enhance your resume and potential as a teacher.