India

Malviya National Institute of Technology is the best option after BITS-Pilani for doing B.Tech Computer Science and Engineering in Rajasthan. Admission is based on JEE Mains score.

Lok Nayak Jayaprakash Narayan National Institute of Criminology and Forensic Science, Rohini, Delhi runs following courses in affiliation with GGS IP University Delhi:
(a)MA Criminology: Eligibility is Graduate from any UGC recognised University securing atleast 50% , marks in aggregate at the final

To get admission in IIMs, you need to clear CAT. You need to score at least 97 percentile in CAT to get a call from IIMs. A good academic/work profile will definitely get you in IIMs.

Since your JEE score is bit low you will get colleges like GNIOT, NIET, Galgotias, etc. You may also get admission in GL Bajaj.

You will have to appear for any of the state / all India engineering entrance exams to get admission in a B.Tech college without donation.

For MAT preparation you can go for Career Launcher or Times coaching.