Hello,

IIMs are the top Institutes in the field of MBA in India. The top three IIMs are given the abbreviation A, B, C.
IIM AHMEDABAD- IIM A
IIM BANGALORE- IIM B
IIM CALCUTTA- IIM C

The placement statistics are mentioned below:
IIM AHMEDABAD:
Students placed - 425/431
Average salary- 20.99 Lakhs

IIM BANGALORE:
students placed - 449 /405
Average salary- 24.82 Lakhs

IIM CALCUTTA:
students placed - 517/462
Average salary- 17.39 Lakhs

IIM Ahmedabad is ranked first among them. The top recruiters are same in all of them. As you can see IIM Bangalore has the highest average package among the three.
Raghuram Rajan (RBI Governor) and Chetan Bhagat (Author) are from IIM Ahmedabad, K.Radhakrishnan ( ISRO former chairman) is from IIM Bangalore and Amish Tripathi ( Author) is from IIM Calcutta.

For more information on IIMs you can visit the below provided link:

https://bschool.careers360.com/colleges/list-of-top-iim-colleges-in-india

https://bschool.careers360.com/articles/iim-admission-criteria

Hope this is helpful.