kinit fails in hiemdal-ldap

["novice heimdal" <heimdal@rediffmail.com>]

I have configured heimdal for ldap and added principals to the same 
in my krb5.conf
[kdc]
        database={
                dbname=ldap:ou=KerberosPrincipals,o=mycomany,c=mycountry
mkey_file=/var/heimdal/m-key
                }
when i search for the principals using an ldap search
 i get 
dn:cn=krbtgt/ves.org@ves.org,o=choice-solutions,c=INDIA
which shows that the records have not been stored under the ou=KerberosPrincipals
Could this be the reason for Kinit failing?
ie when i kinit
i get "client not found in kerberos database"
any pointers are welcome
don