Back in 2006-2007, Kareena Kapoor Khan was working on two films at the same time - Jab We Met and Tashan. Tashan required a lot of work - Kareena was getting into the so-called 'size zero' figure, setting trends for the Yash Raj production, which also starred Saif Ali Khan and Shahid Kapoor. Kareena gave her dates for Jab We Met  because she was preparing for Tashan. In a conversation with Mid-day, director Imtiaz Ali revealed that he literally had a “window of 21 days” to start shooting for his film.

During the launch of the Kareena Kapoor Khan Film Festival, the actress said that she had high hopes from Tashan, but Jab We Met surprised her. "I was shooting Tashan and Jab We Met simultaneously. Tashan was a really big film with Akshay Kumar, Anil Kapoor, Saif Ali Khan - it was a YRF film. Jab We Met did not have any big names attached to it at that point. Imtiaz had done just one film. I thought, 'Tashan is going to be amazing, I am going to have this amazing body and I am doing action'. My focus was on Tashan. But then Jab We Met released, and – not that Tashan isn’t special – but people just loved Jab We Met. No one had really thought that. Magic just happens," she said.