Actor Manchu Vishnu, who is lately seen in utter fit and great body in the visuals of his upcoming film Doosukeltha, says he owes his great makeover to director Krishna Vamsi. Speaking about the same, the star revealed that when he met Krishna Vamsi last time, he expressed his desire to work in an action role with the former, who only mocked it off saying that given his beefy physique, Vishnu can only work in comedies. Manchu Junior took it as a personal joke and an insult that lead him to hit the gym in an aggressive manner. The outcome is what we all see – fabulous. Vishnu also shared that he wanted to go under the knife for flab control, but resorted to a healthier way of getting fit.