Its very easy to insert twitter followers badge on blogspot blogs ,
Login to Blogger if not already logged in
Navigate to Layout > Page Elements
Click on the link to Add a Gadget to the sidebar or footer
4. Select HTML/Javascript from the list of gadgets
5. Paste the following script into the widget content box depending on the button your prefer:
Standard Button
Black Button
Big Bird Button
If you would like to view more Twitter Counter badges you will find them at http://twittercounter.com/pages/buttons/
6. Replace the username with your own Twitter username. For example my username is AjinkyaForYou so I would enter username=AjinkyaForYou.
If you are not already a member of Twitter sign up instantly !