We are going to use the free version of CalDAV Sync Free Beta app which is available on the Play Store.
Once downloaded, follow the steps below.
1. Click Settings.
2. Select Accounts.
3. Click Add account.
4. Select CalDAV Sync Adapter.
5. Enter the below details:
User: Full email address
Password: Email account password
URL: To obtain the server settings, Login to cPanel -> Email Accounts -> Choose on the Email Account ->
Configure Calendars and Contacts -> Direct URLs for Calendars and Contacts
May get the URL from Secure SSL/TLS URLs or Non-SSL/TLS URLs on Calendar
6. Click Sign in or register.