Guys I don't think downgrading to ICS just to downgrade the Firmware of NFC Chip is a brilliant idea.
So just made a simple Zip file to update the CM NFC Firmware.
WARNING :- Only meant for devices which have been through JB and unable to have NFC working in CM. All other devices, NFC can be harmed so dont install this.
PS:- Usual warnings employ !
PPS:- All thanks to our great CM Team. Cody, thanks for pointing me in the right direction.