Aishwarya Rai wants to work with Rajani Kanth. The much sought after Aishwarya Rai, who has been turning down movies for more than just lack of time, says she refused Karan Johar’s comedy Dostana because the quirky situations mentioned in the script wouldn’t have worked. Karan wanted to cast her with Abhishek Bachchan and John Abraham. He has now roped in Priyanka Chopra for the female lead.When asked why she accepted superstar Rajnikanth starrer Robot, Aishwarya said: I w