Hi Vinay,
you may have timeout 5 minutes in PI, but you need to ask the SOAP client application (i.e the application initiating the SOAP request) to check their timeout settings,
If the client application times out before PI delivers the response message. you still see the logs as delivered but the client application has never received the response message
you can test this in your quality system using SOAPUI,
by the way, what is the SOAP client in your scenario