Madhur Bhandarkar yesterday held a celebration of success in Milan Lutharia's "Once Upon A Time in Mumbai" on the set of her upcoming film "Dil Toh Bachcha Hai Ji". The director ordered 2 large cakes on the set, and is celebrated with the cast and crew, including Producer Kumar Mangat. The film stars Ajay Devgan and Emran Hashmi, who also starred in "One After ..." and hailed by critics for their performances in the film.