The course structure is similar in both the courses.

The only difference is that MBA is a degree which can be conferred by a university(like IITs, which provides many educational courses like management, engineering. law etc ) whereas PGDM can be conferred by any college(like IIMs, which provides education in management field only) as it is a post graduate diploma in management.

It does not matter which degree you pursue as both are having equal importance and will be looked upon equally by corporate both national and international.

When you are looking for a college you need to look into various factors such as faculties, curriculum, placement, infrastructure, diversity etc. and RIIM Pune is above par than any other college in Pune in all those factors. RIIM faculties are well experienced, most of them PhD holders. RIIM Curriculum is updated every year according to corporate requirements. RIIM college has a corporate infrastructure located with in the city limits and easily accessible from the whole city. RIIM students are from all part of India which gives them an opportunity to learn about different culture and how to adapt in different environment. RIIM Placement also compared to many other colleges is very good they provide an average package of 6 lacs and highest has went up to 14 lacs.

Hello,

XIME Banglore,Ranked 45th best in South India by Outlook-ICARE India MBA Rankings 2020
Banglore campus of XIME,Provisionally Accredited by NBA for 3 Years.best infrastructure facilities.this institution has very record in placement point of view also.

ITM navi mumbai also has its own good record.
Infrastructure provides Facilities like library,auditorium,well furnished classrooms, hostel facilities,etc.
Deloitte, PwC, SBI, KPMG, and E&Y,these are some top recruiters visiting ITM navi mumbai.
This is also well known institution for quality education and excellent placement record.

SIESCOMS was ranked 88 among management schools in India by outlook india's "Top 150 Private MBA Institutions".Also ranked 21st by times of india in 2018.institution has excellent infrastructure...and excellent placement record And
The course seeks to enhance the students’ learning by offering knowledge-building projects in each semester, while fine-tuning their leadership, communication and inter-personal skills.

Now,you can see...all three institutions you mentioned in your question are best at their place...!!!So rank your priorities while choosing any college. You should consider factors including location of College,fees,and other certain factors also.And then select the college.

Hope this helps

Good luck