Sweta to add your icon in Blogger follow this guide:
How to show your favicon (.ico) in blogger
Follow those steps to show your logo/favicon in blogger1. Create a favicon, from a image/logo that you like then with Favicon from Pics convert it in .ico file.2. Upload it in your host root, if you don't have a host, I recommend to use imageboo for it.3. Now that you have your URL/link of Your Favicon, you need to add it in your template. For this log in in your blogger dashboard --> layout --> HTML.4. Press CTRL+F and make a click inside of template HTML code and search for this tag </head> and just above it paste this code
<link href='http://your.googlepages.com/yourfav.ico' rel='icon' type='image/x-icon'/><link href='http://your.googlepages.com/yourfav.ico' rel='shortcut icon'/>
You will see something like this
]]></b:skin><link href='http://your.googlepages.com/yourfav.ico' rel='icon' type='image/x-icon'/><link href='http://your.googlepages.com/yourfav.ico' rel='shortcut icon'/></head>
5. Save it