I have to configure two diiferent networks in one system. For example, I have 2 networks. One is a Leased line VPN network and the other one is a broadband connection. The VPS network IP is 10.62.0.189 and the broadband ip is 220.225.194.225.
Provide me step by step configuration of these two networks in one PC.

Hi,
To begin with you will need a pair of NICs so that you can configure each to separate addresses through their MAC numbers. Yor VPN is a "private" or reserved address that does not "broadcast" its address.
You have not said an operating system, but in Windows it happens by selecting the separate NICs in Device Manager to configure them. The OS will realize, or should, that by selecting each requires it to bring up menus where you select DHCP or define an address.
Peace,
Clarke