Both online and offline programmes are exhaustive covering all topics for NET and consist of lectures, notes and quizzes. Either programme can be selected by both beginners and advanced students.
However, both are structured slightly differently. Due to the physical nature of offline classes, it allows for more teaching hours, more activities and individual attention to students. Online programmes are usually conducted only in the evenings to make them accessible for working professionals as well. They have the advantage of being accessible on any device and are available to you for a lifetime.
Students can pick either one based on their convenience and priority.