Raghu,
The issue here is the SOAP adapter is not receiving the response Code Http 200 , so their is no question to ignore the response.
As Evgeniy Kolmakovsuggested this may be due the wrong request or Content type sending from PI end.
Shashank you can check the actual payload leaving from Pi using http trace :
HTTP tracing in SOAP receiver adapters with TraceHTTP module parameter
Cross chekc this request with the request sending from SOAP UI (use Raw tab of the Request in soap UI) and also additionally to the payload check even the even the headers too.
br,
Manoj