St. Xavier's College

Please refer to the link provided below for details on courses and degrees awarded by St. Xaviers. Different entrance exams required for admission into various courses are mentioned in the 2nd link provided below:
Link 1: https://www.shiksha.com/college/st-xavier-s-college-mahapalika-marg-mumbai-1184
Link 2: https://www.shiksha.com/science/articles/top-bsc-msc-entrance-exams-in-india-blogId-13484

Please refer to the link provided below for details regarding admissions in St. Xavier's college, Kolkata for B.Sc courses in physics. You should be able to check percentage requirements as well.
https://www.shiksha.com/college/st-xavier-s-college-kolkata-park-street-23242

Hi Kartikay,
IIMC only offers Diploma programme. Xavier's, Bombay and Amity, Noida are pretty much on the same level.

You can start preparing from now itself, as you need to be updated with the news and current affairs.