The curriculum of the PGDM and MBA degrees are equivalent, although the MBA degree is examination oriented and concentrates on theoretical aspects of management whereas the PGDM is industry-oriented and mainly focuses on building soft skills While an MBA curriculum is designed by a university, a PGDM course gives freedom to the institute to design its own curriculum. This is sometimes beneficial to the students because institutes can change the curriculum as per the industry requirements and changing business environment. A university affiliated program will essentially follow the university guidelines and changing this curriculum is a very slow process.
A PGDM holder cannot pursue Ph.D. since the PGDM is not recognized So if you are considering higher education in Indian universities, you should go for an MBA instead of a PGDM. IIMs also offer FPM (Fellow program in Management) which is equivalent to a PhD.
Are you in a dilemma over whether to choose a PGDM or MBA?