Pro Mini has 4 GND pins, not 2. The ones on either side are simply placed for convenience, their function is the same. Both VCC pins are also having the same function but the one on the top side of the board is placed so that it could be powered using the FTDI cable. Pro Mini needs a regulated 3.3V or 5V supply (depending on the model) on the VCC pin. If you're supplying unregulated power to the board, be sure to connect to the "RAW" pin and not to VCC. RAW pin can accept voltage up to 12VDC.This documentation page had all the information you needed.Then you have this diagram for help.Make sure to google for such info and only when you don't get any answers you post here for help.
That means I can input the power lines 5v and GND to the top side VCC and GND pin.. isnt it?
Also if I have a non regulated supply voltage of around 12v (Little higher sometimes)
Yes if your Pro Mini is a 5V variant.May I ask what's your source for that 5V?