Default help!!! soft bricked lgog e975 indian..

plzzz..help me..ibought an e975 couple of days ago..rooted & installed CWM in it but yesterday i accidently formatted the /system in cwm & the phone thus sft brikd...i dont have any backup of the rom..it doesnt have any sd card slotn ..itried the adb push cmd but it shows error : device not found..
i can still boot into CWM & then tried the adb sideload cmd ..it didnt work ..instead it shows all the cmds as i press enter...

plzzzzzzz..help....my parents r gonna kill me if they know it...