This question is in continuation of this post, I have tried installing Xerces-C but the thing is Xerces-C version is 2.8.0 and 3.0.0 and XML::XERCES latest version is 2.7.0 and
Did you read the download page that clearly says "Older releases are available from the archive download site."? Perhaps you can find a 2.7.0 release there.