Abhishek Bachchan refuses to act with Kareena Kapoor with whom he had debuted in Bollywood. After Karisma's marriage, Abhi has lost the comfort level of working with Kareena. So, when it comes to Tarun Mansukhani's untitled project (produced by Karan Johar), where Tarun planned a cast of Abhi, Kareena and Saif Ali Khan, Abhi made it clear not to work with Kareena. A close source says, "The result was pretty simple. Kareena was quietly removed from the picture and Abhishek's fiancee Aishwarya Rai was penciled into the cat. The problem was solved immediately and all was well."