Sub group means  i mean category in cse  like  mobile app developper,system analyst,software engineer,it administrator,cloud computing developer,software tester

Look you can't get any of this related to education from our college unless you do your engineering from top colleges like - IIT'S, NIT'S, IIIT'S, top private or government colleges. You have to learn those skills own. If you take CSE, then you learnt about Java or python, data structures, algo etc, but they will not teach you those skills. In these days every fields has good opportunities if you can do it at it's level. All of those are in demand, you can learn aslo ethical hacking. Such as if you want to do app development - then have to know Java, python, Java scripts etc. For cloud computing - python etc. Those are the examples. So first, master yourself with the basic programming, then you can join any of those filed according to internet. Do research on it & found your interest.