Karthi, who will be seen as a caretaker in his upcoming film Thozha, is all set to take up his new role. For his next movie under the direction of Mani Ratnam, Karthi will play the role of an NRI pilot. Sai Pallavi of Premam fame is the female lead opposite him and we hear that she plays a doctor. This yet-to-be-titled film will have AR Rahman composing its music. The movie will go on floors after a couple of months