Hi @Shagun Kochhar Welcome to the instructor's community! Our community is a space for instructors to help other instructors, so feel free to start asking questions and sharing your knowledge and expertise. First, I'll recommend you to take a look at the Udemy Catalog in the Biology area to see how many courses, and topics already exist from that you can start choosing the topic you want to teach depending on the market needs.
Since we function primarily as an on-demand, video-based platform, you’ll need to upload your video files directly to Udemy. In other words, students must be able to view your course lectures on the Udemy platform. You can start creating your course via this link.
This section includes extensive resources on how you can create a Udemy course and get started.
Hope this helps!
Udemy Community Moderator