How To Add Popular Post Widget With Comments Count

1. Login to your dashboard--> layout- ->Page Elements

2. Click on 'Add a Gadget' on the sidebar.

3. Select 'HTML/Javascript' and add the code given below and click save.

<script type="text/javascript">
function pipeCallback(obj) {
document.write('<ol style="text-transform: capitalize;">');
var i;
for (i = 0; i < obj.count ; i++)
{
var href = "'" + obj.value.items[i].link + "'";
var item = "<li>" + "<a href=" + href + ">" + obj.value.items[i].title + "</a> </li>";
document.write(item);
}
document.write('</ol>');
}
</script>
<script src="http://pipes.yahoo.com/pipes/pipe.run?_render=json&_callback=pipeCallback&_id=1cf38ae68efbe859c4ba1ee239cec099&url=http%3A%2F%2FYOURBLOG.blogspot.com&num=10" type="text/javascript"></script>

Note : Remember to replace YOURBLOG with your blog name.Also you can change 10 to show different number of popular posts.

4. Now you are done.