
So just follow the simple steps to add the meta tag in to your blogger blog.
1.Sign in into your blogger blog and click on template
2. Now select EDIT HTML

3.Now find this code (press CTRL + F )
<b:include data='blog' name='all-head-content'/>
<meta content='your description here' name='description'/>
<meta content=' your keywords here' name='keywords'/>
<meta content='your name' name='Author'/>
<meta content='your email address' name='Email'/>
<meta content='global' name='distribution'/>
<meta content='5 days' name='revisit'/>
<meta content='5 days' name='revisit-after'/>
<meta content='document' name='resource-type'/>
<meta content='all' name='audience'/>
<meta content='general' name='rating'/>
<meta content='all' name='robots'/>
<meta content='index, follow' name='robots'/>
<meta content='en' name='language'/>
<meta content='IN' name='country'/>
<meta content='blogger' name='generator'/>
Now add description , keyword , your name and your email address and just click on save and you have done !