The character of Priya Mathur played by Rani Mukherjee in Chalte Chalte (2003) directed by Aziz Mirza, was earlier to be done by Aishwarya Rai. In fact, she had even started shooting for the film. However, according to 'sources' there was an incident on the sets of the film when Salman Khan visited Aishwarya Rai and the shoting of the film came to a stand still. And Aishwarya Rai was replaced by Rani Mukherjee pronto! And since then, Shahrukh Khan and Aishwarya Rai haven't worked together.