This is simple course in Malayalam to know about the way of Taswawwuf introduced by Imam Gazzali in his Mihajul Abidin https://moralstudy.com/course/minhajul-abidin-by-imam-gazzali-short-tasawwuf-course-in-malaylalam/
You can study seven hurdles that Imam gazzali presents in his book. The course include quizzes and certiifcates.