Hi I am also facing the same issue , is that problem resolved ? . Please tell me how I need to proceed further.
Mohan,
Here is some potentially helpful info:
How to: Add a Reference to a Web Service This will generate the proxy objects you need to invoke the web service from your client (i.e. ArcMap add-in)
Next, you need to decide how the endpoint binding information will be set on your proxy. Two possible options here: