Copyright infringement

Do you own the resources?

Either you created them or you have a legal contract with whomever holds the copyright that allows you to use it for commercial use.

Or is it in the public domain?

Yes, if you're using someone else's copyrighted resources (like videos, images, slides, or text) in your course without permission, it can be considered copyright infringement—even if you're teaching the same topic.

However, ideas, facts, and concepts are not protected by copyright. You can teach the same subject as others, but your presentation, materials, and explanations must be original.

Best practice: Create your own content or use open-source/licensed material. Seeking professional help from IPR experts like Setindiabiz, etc. is always advisable.