In my windows Apache subversion server, I have tried to redirect the request to my local file system. For doing this i added following lines in httpd-custom.conf under 'VisualSVN Server\Bin',

LoadModule alias_module bin/mod_alias.so
LoadModule authz_host_module bin/mod_authz_host.so
Alias "/svn/MAIN_DB/tags/root/Project3" "D:\root\Project3"

<Directory "D:\root\Project3">
Options FollowSymLinks
AllowOverride All
Order allow,deny
Allow from all
</Directory>

While trying to access(export) the url 'https://mainserver/svn/MAIN_DB/tags/root/Project3' from the svn command line tool, getting the following error,

Redirecting to URL 'https://mainserver/svn/MAIN_DB/tags/root/Project3':
Redirecting to URL 'https://mainserver/svn/MAIN_DB/tags/root/Project3':
svn: E195019: Redirect cycle detected for URL 'https://mainserver/svn/MAIN_DB/tags/root/Project3'

Is any other configuration is needed?