"I have internet access but these sites are blocked for downloading contents(error code - 500). Also PPM GUI shows very less no. of modules as it is not able to synchronize due to corporate restrictions."

The link I provided you earlier (Yes, even you can use CPAN) touches on all of these points, management buy in, corporate policy etc, please read them and consider resolving the issue within your organisation or client. I faced this issue until working through it with our client. The process will be different for each organisation.

"Can I get manual installing instructions for C based modules anywhere. Like which file to place where etc.??"

It's not always quite that straightforward, consider using the ActiveState documentation for configuration of the development tools (which you will still have to download and install). I've not had to do this for years.

Update: PPM allows local installations Re: Problems installing new Modules for ActiveState v 5.10.

In reply to Re^2: Installing Perl Modules by marto
in thread Installing Perl Modules by 9mohit2

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