Call form from another form by passing parameter in oracle apps

Hi ,

I want to call one form another form by passing parameter.

I am using FND_FUNCTION.EXECUTE to call form

FND_FUNCTION.EXECUTE

        (function_name => 'XXPO_239_MANAGE_MINMAX',

         open_flag     => 'Y',

         session_flag  => 'Y',--'NO_SESSION',        

         other_params  => 'G_ITEM="'||:ITEMS.ITEM_NUMBER || '"');

                          

In the called form I have created parameter G_ITEM and In the new_form_instance of called form passing this value to passing Item

:XXPO_REQUISITION_ITEM_SUBS.ITEM := :PARAMETER.G_ITEM;

Now form is getting called but the parameter is not passed properly and all the content of the called form is displayed. I want only restricted value based on parameter passed from calling form should be displayed.