Hey @RuchiNigam1710, You are free to choose the topic you wish to teach on Udemy. Please refer to our restricted topic list, however, for details on the topics that we do not accept.
A standard Udemy course is video-based. Courses must have at least 30 minutes of video content and at least 5 lectures or learning modules. Additional teaching tools (like assignments, quizzes, and coding exercises, etc) can be added to create a rich learning experience for students.
This section includes extensive resources on how you can create a Udemy course and get started.
Hope this helps!
Udemy Community Team