There is no default meta tag in my template. So I have added this meta tag:
<meta name="keywords" content="<?php echo tep_output_string_protected($oscTemplate->getTitle()); ?>,AADVR Systems from ECCS" />
But my problem is in the meta description portion:
<meta name="keywords" content="***Here I want to add description from my Product description***" />
How can I add: <?php echo tep_output_string_protected($oscTemplate->getTitle()); ?>