Able to add mail ids in private addressbook,but not able to view it.

[shiny]

I want to configure a global address book and private address book in round cube configuration.Global address book is working fine for me.But in private address book ,I'm able to add users through round cube and is showing the message like successfully added,but not able to view the added id's.Also when I try to add the existing id,gives a message like: already exists.
I tried the configuration of private address book like:

$rcmail_config['ldap_public']['private'] = array(
    'name'              => 'Private LDAP Address-book',
    'hosts'              => array('10.101.200.36'),
    'port'                => 389,
    'user_specific' => true,
    'base_dn'         => 'cn=%u,cn=Manager,dc=lpsc,dc=gov,dc=in',
    'bind_dn'          => 'cn=%u,cn=Manager,dc=lpsc,dc=gov,dc=in',
    'bind_pass'      => ''%p",   // the user login password is used
    'filter'              => '(objectClass=inetOrgPerson)',
    'groups'           => array(
        'base_dn'           => '',     // in this Howto, the same base_dn as for the contacts is used
        'filter'                 => '(objectClass=groupOfNames)',
        'object_classes' => array("top", "groupOfNames"),
  ),
);

What I got in error log is :

[26-Dec-2013 10:59:26 -0500]: LDAP Error: Bind failed for dn=cn=mailuser1,cn=Manager,dc=lpsc,dc=gov,dc=in: Invalid credentials in /var/www/webmail/program/lib/Roundcube/rcube_ldap.php on line 438 (GET /?_task=addressbook&_source=private&_page=1&_action=list&_remote=1&_unlock=loading1388073566114&_=1388073566118)
[26-Dec-2013 10:59:28 -0500]: LDAP Error: Bind failed for dn=cn=mailuser1,cn=Manager,dc=lpsc,dc=gov,dc=in: Invalid credentials in /var/www/webmail/program/lib/Roundcube/rcube_ldap.php on line 438 (GET /?_task=addressbook&_framed=1&_action=add&_source=private&_cid=0)

Kindly provide solutions