It is very easy and few simple steps that you have to follow and you will have clean post titles in your posts.
Step 1: Goto Layout >> Edit HTML
Step 2: Find this code <title><data:blog.pagetitle/></title>, you will find this code in top 9 lines of your HTML code and replace this code with the code mentioned below.
Step 3: Copy the code below and replace with the code mentioned above.
<b:if cond='data:blog.pageType == "index"'>
<title><data:blog.pageTitle/>
<b:else/>
<title><data:blog.pageName/></title>
</b:if>
Now checkout your posts for changes.
My name is Shravan Mishra and I'm a part time blogger, living in Delhi, India.
