An array of videos of Aamir Khan — in character in and as Laal Singh Chaddha — jogging across South Indian cities, have been bringing a smile to the faces of cinephiles. However, for the actor, the experience has been far from enjoyable.

Khan, who had previously gained 20 kilos to film portions of the Forrest Gump (1994) remake, had been jogging 10 to 13 kilometres each day to shoot for the remaining sequences. So exhaustive was the physical demand of the leg that Khan, 54, had to pull it off on a steady dose of painkillers.