How to study idt

Bangar is the best book

I also studied from Rajkumar sir and his notes are awesome. His chart form notes and examples are sufficient for understanding the provisions. So,dont worry. Read his notes,and you will be able to understand and link the provisions with each other. For practical problems, you may refer practice manual of the institute. And I would say,if the provisions are clear in your mind, then you will not face problem in attempting questions and case studies in exams. I got exemption by reading his notes only. And the notes are already summarized,so no need to refer any other book. Just complete the small topics,i.e., the procedural part and customs first. And dont leave the small topics or customs part for the sake of big topics like CCR. These small topics will surely help you to fetch good marks .

But it's too vast. In my last attempt I could not even complete half of my syllabus in 6-7 days what I allocated for IDT. It seems very scattered here and there although I maintained notes properly. Should I refer Bangar's Compiler for for summary and Raj kumar sir's notes for detail understanding? Or would it be confusing to refer both?

I dont know about bangar... I haven't seen that book. But give 15 days time for preparing idt from rajkumar sir's notes. You will be able to complete. And if you find any extra points in the his notes which are not covered in his charts..then mark them and read those marked points alongwith the charts , examples during revision. This is what I can suggest you. Further wait for others replies.