The song is “Maar Gayi Re Hamein Teri Najariya.” Per comments at the YouTube, in addition to Noor Jehan, this might include the voice of Shamshad Begum, one of Bollywood’s first playback singers, who recently celebrated her 90th birthday. I should mention that these songs from “Khandan” were written by Ghulam Haider, a groundbreaking musical director who also provided the first big breaks for Lata Mangeshkar.
Anyway, this clip is fun too – with delicious-looking food, and so many candles!