Add following lines in include folder of httpd (in folder conf.d) with the name of subversion.conf
#Add following lines
LoadModule dav_svn_module modules/mod_dav_svn.so
LoadModule authz_svn_module modules/mod_authz_svn.so
<Location /svn>
DAV svn
SVNParentPath /svn
AuthType Basic
AuthBasicProvider ldap
AuthName “YOu can give any name”
AuthzLDAPAuthoritative on
AuthLDAPUrl ldap://ipadddress:389/ldapname?uid?sub
AuthLDAPGroupAttribute memberUid
AuthLDAPGroupAttributeIsDN off
require valid-user
</Location>