Jiah Khan, with her keen sense of smell from a perfume factory stint, impressed Amitabh Bachchan on the 'Nishabd' set by identifying his daily colognes, leading him to suspect she was checking his toiletries.
Jiah Khan has earlier been quoted as saying that Mr. Bachchan smelt really good. Incidentally Jiah had done a short stint in a perfume factory and had a good nose for perfume. She could recognize any famous brand of perfume or cologne just by smelling it once.
According to her, Mr. Bachchan has an amazing collection of cologne. He would sport a new brand everyday during the shooting of 'Nishabd'. She would smell it once and instantly tell Mr. Bachchan which Brand it was. Initially Mr. Bachchan would think that it was just mere guesswork. But when Jiah started doing this regularly without fail, he was taken aback and suspected that Jiah was going through his toiletries kit. So the actual factory story has been finally revealed.