Power doesn't come from battery to eny part of the car

[Mike_75]

I'm talking about a 98 Passat GLS 4 Cyl-1.8T

My car suddenly did'nt start this morning. It was fine yesterday.
Now, when I turn the ignition it seems like there is no power coming from battery to any part of the car and it won't start ( none of the pannel, power door/windows doesn't show to have power, Just LED of Stereo blinks like normal conditions even the oddometer which was on everytime is off now)

So, I thought its a battery failure (its just a 4 month brand new battery) and tried to do jumping but didn't work And checked the battery which was ok.

Then I checked all the fuses in the fuse box on left side of pannel under the cover. All seem to be OK. I don't know if there is a Master Fuse/Relay for this model or not? or it could be something else? Please help.

As I'm not that professional, every help with the detail about the locations to be checked will be appreciated