Both are the decent colleges, It depends on your interest which branch you want to opt. There is no such big difference in CSE & IT.

Computer science engineers are involved in many aspects of computing, from the design of individual microprocessors, personal computers and supercomputers to circuit designing and writing software that powers them While Information Technology deals with the use of electronic computers and computer software to store, protect process, transmit and securely retrieve data.

As per the analyzing report of Careers360 BIT Bangalore has AAA+ rating which means good & Ramaiah Institute of Technology has AAAA+ rating which means outstanding. This rating is given to the colleges on the various parameter like placement, Faculty & Industry Exposure etc.

You can check the genuine reviews of the colleges with the given below links.

https://engineering.careers360.com/colleges/ms-ramaiah-institute-of-technology-bangalore

https://engineering.careers360.com/colleges/bangalore-institute-of-technology-bangalore

You can take the wise decision to go through all about the details of the colleges & as per your interest also.

Good Luck!