Writer Niranjan Iyengar's laptop was stolen from his car that was parked at filmmaker Karan Johar's office, Mumbai Mirror reported.
"My laptop was stolen. All the dialogues of Heroine were stored in it. I have lodged a FIR (First Information Report) at Khar Police Station. Let's hope I get it back but I think that the chances are slim," Iyengar told Mumbai Mirror.
He said that some of the dialogues will need to be rewritten due to the loss.
The film features Kareena Kapoor and Arjun Rampal in lead roles.