Hii ,

First of all CSE as the name suggests is related to software , language , apps right.

In this branch you are required to create something out of nothing like a system or apps etc

Whereas in CST you are a technical experts which are required to find errors and difficulties in the softwares created by the engineers .

Jobs options in CSE are limited but as a technical experts you have plethora of options to choose from .

They are not the same person but you will be hired by software companies in both options

https://www.careers360.com/university/presidency-university-bangalore know more about your college here .