Hi Jambunathan, I see this addition in one of the latest commit:
+(defcustom org-export-odt-use-htmlfontify t + "Specify whether or not source blocks need to be fontified. +Turn this option on if you want to colorize the source code +blocks in the exported file. For colorization to work, you need +to make available an enhanced version of `htmlfontify' library." For now, the correct default value is `nil', otherwise users will encounter problems. Also, this change only make sense when the enhanced version of htmlfontify.el is publicly available, so that we can point at a URL. I guess this will be the case soon :) -- Bastien