Perl to TERADATA connection via DBD::Teradata using kerberos

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Perl to TERADATA connection via DBD::Teradata using kerberos

Hi , 

I need to connect to teradata from perl without using password [ kerberos ] via the module DBD::Teradata . I have acheived it via ODBC but didnt have a clue for  DBD::Teradata  ,other than , it can be accomplished via tdat_security . I am not sure how to use it . Please help .