Farhan Akhtar was required to ride a bike in one of the scenes. But, he didn't know how to ride a bike. So, finally his producers' organized some bike riding lessons for him. But, Farhan was not happy with this much. He wanted a full fledged license before he would enact the biking scene. His producers and the director of the film had no choice but to wait for the license to arrive. It took the filmmakers more than a month to complete this particular scene.