Strangest experience in DWARKA SECTOR 9

recently visited Delhi, some of our relatives live near Dwarka sector 22. Me along with my father attended the function near 'Singlas resturant' and since we had to take our train next morning we took a decent hotel in SECTOR 9. NOW COMES THE MAIN PART, we slept early since we were tired, suddenly my sleep disrupted due to heavy moaning/ screaming happening somewhere. Initially I thought I may be dreaming, but next I saw my dad covering his ears. Holyfuck, that kept increasing min by min. Almost from 350 am to 5 this happened. And I was shocked WHERE THE FUCK KAR WE, and why people around are not complaining. Next morning we packed up boarded train, but I kept looking for answer, IS THERE SOMETHING WEIRD ABOUT DWARKA SECTOR 9 . Btw the hotel was behind dwarka sector 9 metro station I think.