Using File Manager (easiest)
- Open cPanel → File Manager.
- Open the
public_htmlfolder — this is your main website's root. - Click Upload and select your files. For many files, upload a .zip and use Extract.
Using FTP
- In cPanel open FTP Accounts and create an FTP user (or use your cPanel login).
- In an FTP app such as FileZilla, use host
ftp.yourdomain.in, port21, and choose "Require explicit FTP over TLS". - Upload files into
public_html.
Tip: addon domains have their own folder, shown in cPanel → Domains.