Follow the steps to Create Subdomain from your cPanel:
1. Login To Your cPanel.
2. You have to go domain section and click on the link Subdomain.
3. Here you have to type the name of subdomain and select the domain to create under. Default path to create subdomain folder under public_html folder.
4. Finally, click on the Create button and you will see the new pop-up window “It has been created”.