Hey Debmalya Mukherjee,

Computer Science Engineering(CSE) : - This is the part of engineering where many gets confused. This is a slight different from COMPUTER ENGINEERING. In Computer Engg. the main aspect is to get the all over information whether it is hardware or the Software. 

While the CSE is related with the Design of the compiler and how the working of the computer and their compilers works here also you will learn about the software and programming but it is more concerned with the COMPILERS DESIGN and its WORKING. While the CE works wuth the hardware like Micro - Processor and the software part.

Information Technology : - This is the field only related to the Software and the Programming base. It doesnt include the hardware part or any sort of such subjects, It is purely concerned with the Programming part.

All the best!

Computer Science is creation of softwares and hardwares by using different programming skills.

IT is just the selection of the proper software or hardwares for the task

In other words CSE create the software and IT engineers use it to solve various problems.

Both have equal scope but I have heard that IT field is becoming saturated due to lots of IT engineers. CSE is more profitable according to me as you can survive in this field easily as lots of jobs are available and if you create great softwares you will be at the top of the pinnacle.