India, April 16 -- Before he became an undercover spy alongside actor Ranveer Singh in Aditya Dhar's Dhurandhar films, actor Mustafa Ahmed began his journey in the industry as a celebrity trainer. We caught up with him to find out some interesting facts about the actors he has trained. "All of them are foodies," he laughs. For actor Hrithik Roshan he reveals, "He can eat! I've seen him having 13-14 ghee waali chapatis. He only stopped because the next one took time to arrive. He's an absolute foodie!" Talking about actor Vicky Kaushal, whom he trained for the now-shelved The Immortal Ashwatthama, Mustafa shares, "He can eat a brick and digest it! I don't know what kind of metabolism he has. It is so difficult to make him gain weight or muscle." On actor Yami Gautam Dhar, he shares, "She loves her chai and ghar ka khaana." And when it comes to Ranveer? "He can sniff out Nutella from anywhere; he will find it!" That love for food, however, became an advantage during Dhurandhar. Mustafa reveals, "It was Aditya sir's brief that Ranveer had to look like a beast, but not stiff. We had very little time. He was around 75-76 kilos, and by the first day of the shoot, he was 87 kilos. He had to eat a lot!" Despite the intense transformation, Mustafa calls him a dream client: "Ranveer is a treat to train. Everyone knows his energy. He enjoys weight training. In his words, 'Sir, loha todte hain (Let's pump iron)'." The regimen was relentless: "Two sessions a day for four to five weeks. That's how we got him to look like someone who could rip a person apart with his bare hands."...