Thanks and sorry for the dumb question. I digged a bit and found out query language. http://extensions.xwiki.org/xwiki/bin/view/Extension/Query+Module <http://extensions.xwiki.org/xwiki/bin/view/Extension/Query+Module>The detailed information is here. Thanks a lot for your time. -- Thanks and Regards, Shoubhik Bose IF I REST, I SHALL RUST.. SO, LETS SHARE THE KNOWLEDGE !