pl suggest me ways to retrieve those pages..

Not sure what you mean by that Dear Monk. The technology used to generate a web page bears no relevance to the ability of a browser or browser-alike to retrieve it.

The simplest example I can think of to accomplish this comes right from the man page of LWP::UserAgent:

        require LWP::UserAgent;

        my $ua = LWP::UserAgent->new;
        $ua->timeout(10);
        $ua->env_proxy;

        my $response = $ua->get(’http://some.url.com/’);

        if ($response->is_success) {
            print $response->content;  # or whatever
        }
        else {
            die $response->status_line;
        }
[download]