you can set other meta tags as per your needs. For Example Robots, author contact, submission & all of that what do you want....
Just add your meta tag code after this code in your template/index.php

Code:
<jdoc:include type="head" />



Code you have to add

Code:
<?php
$this->setMetaData('robots', 'ALL' );
$this->setMetaData('author','www.kamleshpatidar.com');
$this->setMetaData('language','English');
$this->setMetaData('submission','www.thamesmarketing.com');
$this->setMetaData('contact',' Diese E-Mail-Adresse ist gegen Spambots geschützt! Du musst JavaScript aktivieren, damit Du sie sehen kannst. ');
$this->setMetaData('format','text/html');
$this->setMetaData('document-classification','Website Marketing & Software Development Company');
$this->setMetaData('document-distribution','Global');
$this->setGenerator('');
?>