RewriteOptions inherit

RewriteEngine on
RewriteCond %{HTTP_HOST} ^webinar\.mbits\.ac\.in$ [OR]
RewriteCond %{HTTP_HOST} ^www\.webinar\.mbits\.ac\.in$
RewriteRule ^/?$ "https\:\/\/sites\.google\.com\/mbits\.ac\.in\/webinar\/home" [R=301,L]