Hey,
In the video, at that moment Sir is presenting the types of questions. These are generally the pattern in the assignments and final question papers.
First, you have to select the course you want to enroll then register yourself for the course. It is free of cost but for getting a certificate one has to sit for all the assignments and examinations, which would cost Rs. 1000.
You can also check the announcement section for further clarification.
Thanks and regards,
Shazia