What is the best free PCB designing application..??

NI$HANT:
I personally recommend a paid programme that is circuit wizard its a complete suite that meshes well with user and also provides the simulation capability so you can test your pcb prior to ordering them in bulk that is crucial i think ,although i have used kiCad, eagle but they lack in the simulation thing that is provided by this circuit wizard and user interface is awesome too.

Curcuit Wizard is pretty sweet, user friendly = easy to learn. In just 10 minutes, I made a schematic and a PCB of a simple circuit. My main program is Fritzing though... I like how it's laid out.