Hot actress Shruti Hassan recently walked out of Jr. NTR’s Dammu movie.  The makers have managed to make a eleventh hour replacement in the form of Trisha and Karthika. But that did not stop the film buffs from probing into what actually prompted Shruti Hassan to exit from Dammu. Well, it’s been buzzed that Shruti and Dammu producer KS Rama rao entered into a heated argument. They both were sharing negative vibes and this did not go well with Shruti and she finally decided to step out of the project. However, Shruti kept on maintaining that the makers of Dammu did not utilize her given dates properly. KS Rama rao was unavailable to comment.