It is known news that the new movie 'Ravana' directed by the maverick movie maker Mani Ratnam got delayed since the director was admitted into hospital due to a heart stroke. Now, Mani is back to work but then his ace cameraman Manikandan had already given his dates to a Shahrukh Khan film in Bollywood. Now, there is news that Mani has replaced Manikandan with his good old friend Santhosh Sivan. This has proved to be an even more effective and successful combo.