Hello Kritartha ,

According to web results and based on student reviews RG Kar Medical college and Institute of post graduate medical education and research good colleges so let's know some facts about college .

1. Both are Public / Government Universities .
2. IPGMER offers more courses compared to RG Kar Medical College .
3. Exams accepted for admission in both colleges same .
4. IPGMER have Auditorium facility .
5. For IPGMER 5 students rated 4.7 / 5 and for RG Kar 3 students rated 4.7 / 5 .

So, IPGMER quite better compared to three colleges  .

If you want some more information about IPGMER go through this link you get some idea .

https://www.careers360.com/colleges/institute-of-post-graduate-medical-education-and-research-kolkata

I think this answer will help you lot .

Keep learning my friend .

All the best !!!