My car's NEW battery had died in morning. 

I checked the voltage it was 12.7 before starting and raised to 14.1 volts after jump starting which means the Alternator is good. right?

I removed a few connections of lights and sound system which seemed to be draining power overnight. 

Parked my car for 8 hours and then checked voltage it was 12.7 and i started the car and voltage was 14.1.

Which means Alternator is charging battery once car is started.

Then parked for another 3 hours and came back to check voltage and it was 11.9 this time. Car started and voltage was 14.1.

Parked it again.

Came to start in morning and battery was drained voltage was 6 and car would definitely not start.

What can be the reason here for this power drop again ?

I believe there is some electrical component that is draining battery overnight ?

Not the Alternator and battery

Because once i jump start car

The Alternator charges the battery to full potential 14.2 volts right ?