Which one is better: BA journalism and mass communication or B.Tech CSE?

All these fields are good at their own place. It all depends on your interest that in which field you are really interested. BA in journalism and mass communication is also providing more and more scopes. But, if you want to go as per placement or job after course completion, then you should go for

Both are different fields. Find your interest, and then take admission in any college. To make you clear- Journalism is all about field work and B.Tech is all about technology.

Both are two different fields. You should select the course in which you are more interested in. Both the courses are good in their respective field.