Vocabulary

ਗਾਉਂਦੀ
gaaundi

singing (feminine present participle); 'gaaundi hundi ci' is the habitual past: 'used to sing'

verb
In this song
Poh Di Raat · Diljit Dosanjh
Verse 3
ਸਕੂਲੇ ਗਾਉਂਦੀ ਹੁੰਦੀ ਸੀ
schoole gaaundi hundi ci
You used to sing at school