What is the difference in subjects of IT and CSE?

Hi,

Let me first discuss the technical differences.

CS takes a more balanced approach between theory and application while IT focuses more on application

CS offers you an opportunity to learn variety of topics related to computers. IT offers you an opportunity to discovers innovative uses of those fundamental concepts.

CS generally require a decent background in math while use of math in IT is limited to data analysis / processing / statistics, etc

You may call IT as one of the sub-divisions of CS, however there are certain things that are unique to IT like integrated programming, system administrations, maintenance, etc.