Varsha have you looked at the user guide? Go to http://download.oracle.com/docs/cd/E12515_02/grc/html/docset.html and download the one for the version you have. Have a look at the form extension, and also make sure the installation was done properly. Depending what happened during install you may have to kick off some GRC programs to attach itself to the forms. Form Rules only work for Oracle Forms (java based), not HTML forms.