Hello Manoj,
This is just peer-to-peer forum and although we (IG staff) do our best to help here, this is by no means the media to get fixes and guaranteed support. If you want to have an issue fixed, please contact our developer support departments directly via ticket - this way you will receive guaranteed answer and the bug (if it is verified and confirmed) will be addressed and fixed.
Developer support can be reached at:
http://ko.infragistics.com/support/default.aspx