Hi Pankaj,
Here is what's in the htaccess. Nothing unusual and normal rewrite rule to prevent duplicated content.
It's deactivated in the htaccess fil at the moment.
RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /index\.(php|html) [NC]
RewriteRule ^index\.php$ https://www.opdagverden.dk/ [R=301,L]