Automate registrations using Perl


I wanted to automate registration for a website.
This website has captcha on the registration form, it will store in one cookie, and i know the cookie name.

What i wanted to do is, I want to send all the form data in POST request for the registration to complete. Is it possible?

Please suggest a better way to do this?

If so, please tell me the modules to use, how to send the post data?

Thanking you in advance.