India, April 26 -- Shah Rukh Khan and Rani Mukerji's Chalte Chalte was a box office success upon release in 2003. Fans loved the chemistry between the two leads and Rani received praised for her performance. But did you know Rani was not the first choice for the film? It was Aishwarya Rai who was originally cast in the film, and even shot for a day. Director Aziz Mirza told in a new interview with Radio Nasha Official what made the change in casting. (Also read: When Aishwarya Rai was 'hurt' about being removed from five films: 'Became obvious that it can happen to me too')

During the interview, Aziz recalled the memories of Chalte Chalte and said, "I don't know. Anyway. These are areas which are unfortunately. we had done only that one ...