Hi Aspirant!

BSc Computer science is a 3 years undergraduate course and B.Tech CSE is 4 years undergraduate course (Engineering degree).  BSc CS focuses on about computer application but won't focus much on coding.  On the other hand B.Tech will entirely focus on the hands-on practicing of coding language as well as in-depth knowledge about computer applications.

Scope of these three is as follows:

B.tech> B.E.>BSc

The IT companies prefer BTech candidates over B.E or BSc candidates as they have practical and industrial knowledge about the subject.

Thankyou!