Hi Varun,
Relax! We'll be posting you the different things like IRS and chapter tests when the time is right.
Right now, for example, the IRS would be of no use to you since your first focus must be on understanding and getting used to the concepts. Revision comes at a much later stage.
Our not sending you the entire material like the IRS and chapter tests is a deliberate action, since we do not want to overburden you with a diverse variety of content. In our terminology, we do now want to "
assault you with information".

So relax and focus on building your concepts rather than worrying about the missing content. You'll get that in due course of time.
Regards
Admin