Appreciate your support. It worked what u told but now I have list of paths of modules which are not placed in @INC. (like math/Pari.pm, Digest/Sha1.pm) I am manually placing it using unshift but list seems endless. below is what I am doing.

BEGIN {
unshift (@INC, "/home/eankuls/.cpan/build/Net-SSH-Perl-1.37-KSvjy6/bli
+b/lib");
unshift (@INC, "/home/eankuls/.cpan/build/Math-Pari-2.01080607-oiJwzq/
+blib/lib");
unshift (@INC, "/home/eankuls/.cpan/build/Math-Pari-2.01080607-oiJwzq/
+blib/lib");
unshift (@INC, "/home/eankuls/.cpan/build/Crypt-DH-0.07-B70AtC/blib/li
+b");
unshift (@INC, "/home/eankuls/.cpan/build/Digest-SHA1-2.13-lHIaOb/blib
+/lib");
}
[download]

I just want to do it from starting. Could you pls suggest how can I unistall the previously installed modules and the exact list of modules which I need to run my script. This time I would prefer to download tar files from CPAN coz other method is causing some permission problems.