Online ca final practice manual

I want to buy CA Final practice manual but when I went to ICAI in vishwas nagar they said the stock is sold n it will be restored next week. I am trying icai books enquiry number but no response. I came to know about online store for Ca modules but the site is not working. Can anyone suggest any solution for this? Can anyone help about the site and how to get registered or any number for books enquiry???