Hi Jeetu.
A template is a vital peice of the solution. When a document is made from it, that document always retains a link to the template since the template is required for it to be rendered properly.
A template cannot be copied, it must be published so that InfoPath can provision itself properly.
You would need to send the XSN to someone who had InfoPath and write Access to the final location on Server B.
They would open the template in design mode and go through the publish wizard to deploy to server B.