I'll convert IIM Udaipur, probably Raipur and Kashipur, DBE DU as well. Which one should I take considering I am in a tight financial corridor currently and would have to take a 7 digit loan for IIMs?

All the IIMs offer great educational loans so financial problems are not a major issue here. Many banks are lined up to offer loans at very low interest to the students at the time of admission. The ROI is also great compared to DBE. Apart from that the IIM tag will also open multiple opportunities for you. But if you are confused about the 3 IIMs, I will enlighten you about the culture of each. This might help you make a better decision.

IIM Udaipur: Academic rigor

IIM Raipur: Discipline

IIM Kashipur: Overall rigor

So make the choice based on your own preferences.