Hello Aspirant, 

Both the colleges are of the same group and have the same owner but are two different colleges with CMRCET having a slight upper hand as the overall ranking is slightly better than that of CMRIT. Both have same accreditations and the fee structure is also similar.

You can check the differences here. 

https://www.careers360.com/compare-colleges?college=5528-2673-course=35347-2745-compareresult

Hope it helped you..