Hi Nabendu,
Thank you for that information, it is helpful 
. What I was referring to about is to have the value of XHeaderName1 to be Authorization: and then use dynamic configuration to place
Basic NTA1YzAyMjk4ZTA4NGZlNGI1ODk1YjBjN2Y5YWQxMmM6YzJmNDk0NDQ1ZDhlNGQ3MkFBMjM3R
Since the authorization are read from the http headers anyway, that approach could work. Just don't input anything on the username/password. The same idea can be found here
A closer look at SOAP Sender authentication
but using the receiver side instead of sender.
Regards,
Mark