Sanjay Dutt and Hrithik Roshan bonded like a house on fire while shooting for their film ‘Agneepath’. The film that has Hrithik as the main protagonist and Sanjay Dutt as an antagonist required the highly acclaimed stars to bulk up their bodies to personify their on-screen characters in the film.

While shooting for the film, when the two worked out together in a gym, Sanjay evolved as trainer from being just a co-star and friend. Sanjay says that Hrithik already had a perfect body and shape but to come fair on the demand of the film, he required to bulk up his muscles. And Sanjay proved a perfect trainer for him, despite of the pain, he compelled Hrithik to push his limits and extend his boundaries.

Not just Hrithik but Sanjay too had to beef up his body by three-times.