I've installed OpenVPN for Android on my Android 4.2.2 (Micromax A74) and Now I want to configure it in order to connect/active VPN.
How to configure OpenVPN for Android?
Some free VPN profiles or config files (.ovpn) to start-off with (on this page)...
Downloaded files are bundled in a ZIP file. Use any file manager to extract. Don't ask for passwords and usernames. Everything is mentioned on the same page. Add the file to OpenVPN and type in username and password upon prompt. You're now connected anonymously ;)
Here is an article on how to setup your own OpenVPN server and at the bottom you have details on how to install it then onto your phone.
I think this article is usefull because you also get how it works in background and what is needed for the VPN certificate.
Also, it doesn't go that deep that you need some serious knowlege of computing.