Hi @Muskan924 , we're glad to have you aboard!
Our minimum requirements for a course is that it contains at least 30 minutes of video content contained within at least 5 lectures.
Here are some great resources regarding course creation:
Course Quality Checklist
How to Become an Instructor: FAQ
Wistia Course Creation Compilation
If you have any additional questions, you can reach out to email@example.com.