Help! how to study it?

First of all you should know the syllabus of what you want to study and then you should take the help of some reference book and you should go through that also you should take the help of some online materials if you need.

Resort in silvassa

follow this my friend https://www.icai.org/post.html?post_id=10121, in IT preferr the definitions and understand them carefully as they will contribute you much in exams and at your level it is required to undrstand the basic infrastructure of IT and it's working, which you would be required to apply further in your professional career.