Redirect your site url using .htaccess

RewriteEngine on

RewriteCond %{HTTP_HOST} ^example.net$ [OR]
RewriteCond %{HTTP_HOST} ^www.example.net$
RewriteRule ^/?$ "http\:\/\/www\.example\.com" [R=301,L]

RewriteRule ^index.php$ "http\:\/\/www\.example\.com" [R=301,L]