One (wo)man's loss is another (wo)man's gain. Actress Aditi Rao Hydari has replaced Sai Pallavi as the leading lady in filmmaker Mani Ratnam's yet-untitled Tamil romantic-drama starring Karthi. The actor is tipped to be playing a pilot, who alls in love while on a trip to India. Not much is given away, however, media was lit when Ratnam changed his mind on the female lead. Shooting for the film is expected to commence in June - music will be composed by Oscar-winning composer AR Rahman.