Collaborations 3 features an Indian film playback singer who sang the bidaai song in what film?
Collaborations 3:  Featured in this album are Jazzy B, Diljit Dosanjh, Kamal Khan, Shazia Manzoor, Surinder Shinda, Richa Sharma, Abrar-Ul-Haq and Don Revo. Richa Sharma (singer):  In 2006, she sang Bollywood's longest track, the "bidaai" song, in film "Baabul" (2006).
i don't know