I was not impressed. The narration drags, in spite of a potentially interesting tale. Some good editing may have been able to spruce it up, maybe.
The story itself has a great conceptual base. That of prostitutes being treated as outcastes, in spite of them satisfying a demand created by the rest of society. If there is no demand, a product does not sell. That part of the logic is flawless. Also, it's not called the oldest profession for nothing. Maybe those who cannot get a partner for some reason can visit a prostitute to satisfy their urge.
The sequences towards the end when a sympathetic journalist visits and tries to bring the issue into limelight are quite interesting, and lift the movie up from being a complete drag. Sanjay Leela Bhansali's obsession with using a single set for most of the film also is a reason for the repetitive visual feel.
All in all, a 2.5 on 5. View it if you are a fan of Alia Bhat.