Distance

You can go for IGNOU. Its valuable than other open universities.

Pretty decent and good brand reputation, decent learning opportunities and growth.

Dear student,
Course module is moreover same for all distance learning universities in M.Com course. Its just that you need to search a university with recognition,approachable and in your budget too like-
IGNOU
Himachal University
Madurai Kamesh
Karnataka Open University
MDU
All the best.

Dear Akshat,
There is no restriction for open learning degree holder student to appear for management test. So, don't worry about it and just focus on studies. Do well in exam and you will get a good college for MBA degree.
All the best.

Dear,
Correspondence course means IGNOU is the best. Secondly, Pondicherry University is good. Therefore, choose the best one. If you are nearby Mumbai then prefer NMIMS.
All the best.

PGDBM is comparatively a new course which is picking up its own pace. It is a niche segment and required by very few companies. Distant education will add a degree beside your name but you will not gain much of a career raise because of it. It would be better to go for a full time program.