Hello aspirant, there is nothing called managment quota when it concerns to iims, a student has to go through cat exam and clear it. When it comes to NRI quota, then, that has certain criteria. The student should be outside the india for 12 months and the student should submit gmat score. If ones dream is to get into iims then, it is possible only through these two ways

Hope this helps

All the best

Regards

Nikhitha