Now this was birthday Imitaz Ali will never forget. Singing Happy Birthday and cutting the cake in air that is literally we mean.

A source said, "Saif, Deepika, Imtiaz and Dinesh other cast and crew had just wrapped up with the press conference in London.

Saif had to air dash to another place while Dinesh had fly down to Dubai. That put Saif and Dinesh in a fix because that day also happened to be Imtiaz's birthday."

So the cast made quick plan to ring their director's birthday in mid-air. "All of them were boarding the same flight. And imagine Imtiaz's surprise when he saw this huge cake and everybody singing Happy Birthday for him.

Ali was touched. Imtiaz he would never forget the mid-air birthday celebration, " said the source.