Hellp,
Yes definitely a computer science student can do MBA.All you need is bachelor's degree from well recognised UNIVERSITY.You can do MBA after btech,bca,..and other bachelor's degree in computer science.
For more details you can visit our careers360 website.
Good luck.

In order to take admission in MBA programmes you should have completed your bachelor's degree by a recognised university.

 

You can also check the CAT Eligbility criteria from the given below link

CAT Eligibility Criteria

 

Good Luck!!