AI and ML refers to machine learning and artificial intelligence .

In CSE branch you will create machines based on this , learn new languages and then work on them .

But in CST which is a technical experts you are required to look at technical difficulty or errors in programme.

CSE students are usually hired by companies which create a software or apps which are limited . whereas technicians are hired by every major computer based company .

If you want to know more https://www.careers360.com/university/presidency-university-bangalore