Hi @Amalraj376,
Welcome to the community! We are happy to hear you want to publish a course.
You can absolutely use your mobile phone for recording; just keep in mind to record in
16:9 ratio (landscape), as this is one of our course quality standards.
I also encourage you to take a look at our official and free Udemy courses, which will help you with getting started on Udemy.
I attached some additional resources regarding course creation:
Course Quality Checklist
Teaching Center: How to Plan, Record, Publish and Market your course
Teaching on Udemy: FAQ
Community - Course Creation Compilation
Course Creation Webinar w/ Jimmy Naraine
Webinar Replay: Making the Most of your Instructor Experience w/Katie Bent
Please let us know if you have more specific questions about your instructor journey, and we are happy to help!
