Hello aspirant , I read some articles about presidency University which are written by the ex students of presidency college and also some of the articles on CMR University . According to my observation and these reviews CMR University is better than presidency University , Bangalore for B.tech in computer science. Trainings and studies are good in CMR also there placements are too good . Students of CMR University got placed in reputated IT companies. 

Hope this helps.

All the best!!