I followed this Link: http://developers.facebook.com/docs/reference/plugins/like/
Step 2 - Get Open Graph Tags
<meta property="og:title" content="" />
<meta property="og:type" content="product" />
<meta property="og:url" content="" />
<meta property="og:image" content="" />
<meta property="og:site_name" content="" />
<meta property="fb:admins" content="100004065607702" />
and now it is working fine.