I have a JSR 168 portelt residing on WPS 6.0 and a JSP residing on WAS.I would like to share some data between these two. Is there any mechanism where the data will be shared between these two servers using Dynacache or any session replication mechanism.., please do let me know
You're barking up the wrong tree trying to share data between these components using a Session.
If two web based components are supposed to interact, they should be deployed in a common war file. If not, your best bet at sharing data is to have one component write to a database table, and have the other component read this same table. You can use a WebSphere PortletService to easily accomplish this.