Kris Gethin is one of the most well-known names in the international body-building circuit. He is the creator of the Dramatic Transformation Principle (DTP), which has helped Hrithik Roshan transform his body for his upcoming movie Krrish 3 and has been training other celebs like John Abraham and Mahesh Babu as well. He’s the author of the book The Guide to Your Best Body which explains Dramatic Transformation Principle.