Subject → Chapter → Class. The class is the atomic unit — theory, slides, images, MCQ and subjective questions — closed by an end-of-chapter quiz; the subject closes with its own quiz; marks follow the subject's theory + practical scheme and become a grade; the certificate is issued through your temple and verified online. Every class is approved by a certified pandit before anyone reads it.
The shelf is built and the machinery is ready — classes are written and then approved by a certified pandit before anyone reads them, and nothing appears here on a machine's say-so. When the first Vrikshayurveda course is published, its full structure — subjects, chapters, classes, quizzes, marks and the temple-issued certificate — appears on this page automatically.