Ajab Prem Ki Ghazab Kahani is a upcoming 2009 Bollywood romantic comedy film Story written by Rajeshwar Screenplay by Rajkumar Santoshi Dialogues by R D Tailang and directed by Rajkumar Santoshi. The film stars Ranbir Kapoor, Katrina Kaif and Upen Patel in lead roles with Salman Khan in a special appearance