Yes it is mandatory to buy study materials from IAI. It is recommended to do so at your earliest convenience to avoid any exam booking issues. You will NOT be able to book your exam unless you purchase the study materials. Refer to the following link for the price list
Is it mandatory to buy study materials from IAI?
Yes it is mandatory to buy study materials from IAI. It is recommended to do so at your earliest convenience to avoid any exam booking issues. You will NOT be able to book your exam unless you purchase the study materials.
Refer to the following link for the price list