Hi Ruchika, Yes I was able to solve this problem. Firstly you must create a processAction method for your portletA (or the calling portlet). This is because we are generating an action event from the submit form of portletA. Secondly listeners are registered for a portlet "window" and not the portlet instance. So listeners must be specified during the window deployment ie during the deployment of the -object.xml file. Please let me know the exact problem you are facing and I will try to help you through it. IPC is working as intended for me. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4152523#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...