Using custom sub-domain on our blogger's blog

If you wish to link your blog on blogger to your own domain

For Example:
the blog: http://bannuciscoworld.blogspot.com
needs to be browsed when http://ciscoworld.bannu.com.pk is typed.

The steps or on two parts

first setting up in blog of blogspot.
second setup the dns of the domain.

blogspot setup steps

1. create the blog you want. (E.g. http://bannuciscoworld.blogspot.com)
2. Go to Settings
3. under Publishing
4. click  the link :      + Setup a 3rd party URL for your blog 
5. enter the subdomain like ciscoworld.bannu.com.pk

Second steps (in domain)

1. now go to dns management of the domain provider or the hosting provider.
2. find the setting to add CNAME into your domain
3. in the first place type the subdomain name: (E.g. ciscoworld)
4. in second place add the text as:  ghs.google.com

Thats all

wait for maximum 24 hours and now when you type http://ciscoworld.bannu.com.pk, it will be redirected to the blog on blogger.com

best of luck