CMAT

You won't get into SIMSREE at this score. You can get into Welingkar, SIES, PUMBA, Dalmia, etc. I would recommend giving CAT exam again and also CET exam.

If your profile is complementing your entrance score then you stand a chance to get a call. By this I mean past academics, work experience (if any), extra curriculars(if any).

You do stand a chance of getting a call. Work experience, extracurriculars add a cherry on the cake.

Yes, you can do both simultaneously.

Both are equivalent to an MBA. The major difference being the affiliation. MMS is affiliated to Mumbai University whereas PGDM to AICTE. There is a bit of difference in the syllabus as well.

Your scores are good, but your percentile is low. But you can still go for it, I think you will get admission.

Hello Himesh,
Apologies for the late reply. Know your application form inside-out. Be thorough with your GK, academics and general questions like Why MBA, etc. Prepare well for the GD/CD too. Answer the questions confidently & with a smile, never lie, and don't get too pressurized. Remember, the interview is always a selection process and not a rejection one. All the best.