Director Shankar and Superstar Rajnikanth together have streaked abundant success with 'Sivaji – The Boss' and magnum opus 'Enthiran'. The latter one has made big collections in not just Tamil Nadu, but in other versions as well.   Superstar Rajnikanth has admitted that when Shankar approached him before 5 years, he had three scripts in hand. One was 'Sivaji – The Boss', 'Enthiran – The Robot' and another film based on the mystery of India, in which he was supposed to play the role of a hunchback.   Though the scripts were enthralling, he was really doubtful about Shankar's working style and agreed to take off with 'Sivaji', as he wanted to test with the commercial formula. When the film turned to be a big grosser, he was ready to take up 'Enthiran', which exceeded his own expectations.   Now it's a big question whether the duo will get back together again for the third film that will have Superstar as hunchback.