i need your suggestion in deciding which branch to choose and i wish to know what i am going to study in CSE and EE in IIT's? and what is difference in EE and ECE?

Electrical engineering is a field of engineering that generally deals with the study and application of electricity, electronics and electromagnetism..

ECE is a single major, you cannot seperate it. ECE has components from both more traditional EE programs and newer CE programs..

CS uses mathematical constructs to solve real world problems, most CS majors deal extensively with software side of things

So go with wat you like and where your interest is ..

Thanks and All the Best !!!