Go to Design in your Blogspot Dashboard and Edit your Html codes click on the Expand widgets templates on the top-right to edit text box,
and now Press Ctrl+f
and Find the <data:post.body/>
add FB comment box - (Plugin to ur Blog) use this below code and add it just below the above code
Change the appId value to Ur FB application AppId and ur done
The code is Below use it
<p align='left'><img alt='' class='icon-action' src='http://i51.tinypic.com/qx0905.jpg'/></p>
<div id='fb-root'></div>
<script>
window.fbAsyncInit = function() {
FB.init({appId: '123854347639257', status: true, cookie: true,
xfbml: true});
};
(function() {
var e = document.createElement('script'); e.async = true;
e.src = document.location.protocol +
'//connect.facebook.net/en_US/all.js';
e.async = true;
document.getElementById('fb-root').appendChild(e);
}());
</script>
<fb:comments></fb:comments>
It will appear something like this how it is appearing Under my Post.
