use XML::LibXML;

my $schema_file = 'po.xsd';
my $document    = 'po.xml';

my $schema = XML::LibXML::Schema->new(location => $schema_file);

my $parser = XML::LibXML->new;
my $doc    = $parser->parse_file($document);

eval { $schema->validate($doc) };
die $@ if $@;

print "$document validated successfully\n";
[download]

Hi Joost/astroboy,

Thanks for your comments. Joost, saying XML::Schema::Validator does not work with elementFormDefault="qualified" and it also not supported various tags as mentioned in the POD. But, I want to support all the valid xml tags and elements as supported by the tools.

The XML::LibXML is working fine. But, it's a system package and I do not want to install anything dependent on system packages. The application would run in an secure environment and there won't be many packages installed on it. So, if any perl modules in that validation found please help me.
Thanks in Advance.
Regards,
Gube

Hi, these seem to be your options:
1. XML::Schema::Validator - nice, but does not offer complete validation functionality, but good for many people's requirements.
2. XML::Xerces - I could never get everything installed and working
3. XML::LibXML - clean and simple

I'm afraid that at some point you're gonna have to bite the bullet and go for option three if you need validation