Hi @nmokale , welcome to the Udemy Community! This page is chock full of information about teaching on Udemy.
The minimum requirements for a course are 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
Udemy Insights Courses
Wistia Course Creation Compilation
Spiritual Guide, Shaman, Priestess of the Blue Rose