If grapevine is to be believed, Karan Johar is toying with the idea of finally working with Aishwarya Rai, with whom he hasn't made a single project in his over decade-long career.

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"Karan said that Aishwarya is his ideal heroine and all the scripts that he writes are keeping her in mind. He also said that various reasons have veered them from working together. But he is hoping that it is the right time that he gets her to work in his production sometime soon," a source, who overheard Karan's conversation with director Sanjay Leela Bhansali,u00a0said on condition of anonymity.

The two filmmakers were discussing Aishwarya at Sonali Bendre's birthday party Dec 31.