Hi Kumar,
I totally forgot to see your response on this. Ok, so you are still stuck...
I checked the attached xml real quick and could find the mapping problem under principal typer "user" tag.
1) The first instance of this tag define the UME attributes. Add your question and answer attribute to that.
2) Second instance maps the UME attribute to physical attribute of LDAP. I can see "description" is mapped to "description" . Correct this and add the one for answer too.
I told you, the answer lies in the XML file itself. Just try to study the xml file deeply and clearly and try to get what it is exactly doing. May be then, my above response would make more sense to you...
Regards,
Atul