which course is best between m.b.a. and m.m.m.(master in marketing management)

MMM is fine if you want to pursue your career specifically in marketing otherwise MBA is undoubtedly better than MMM, It will give you better understanding of management. There are various universities in India which offer MBA in different specialization. One can even pursue MBA in core programs the

MBA is better as its approch is everywhere but if your field is marketing only then only go with marketing management.

Both are equally good.