add_action( ‘init’, function() {
if ( 0 === stripos( $_SERVER[‘REQUEST_URI’], ‘/fateh-marathon-cyclathon/’ ) ) {

wp_redirect( http://bbsbec.edu.in, 301 );
exit;

}
}

RewriteEngine On
Redirect 301 /fateh-marathon-cyclathon/ http://fatehmarathon.bbsbec.edu.in