I'm sorry Suneet!
The NL-speakers are the speakers that work on the "Networklink" Multiroom. So the M3/M5, A9, Core, Essence etc. All modern speakers. Except the Balance, which has launched on a new platform.
The BeoLiving Intelligence (BLI) is a home automator which integrates control of lights/shades/cameras with the B&O AV products. If you use BLI, you can use a separate app to control your music, lights, cameras etc.