Aamir Khan these days is shooting for his upcoming film 'Dangal' and also is practising for wrestling in a local arena there. According to sources, Aamir is on a special diet, according to the film's characters he is even doing different kind of workout. Aamir is playing a retired wrestler role in the movie because of which his trainer took him from Mumbai to Ludhiana and also tried some different exercise . Khan's trainer got all the equipment for workout in Ludhiana. Aamir Khan's close source said that he saw local people exercising in the arena in Ludhiana, then he desired to work out in the arena to his trainer. Aamir now is continuously exercising in the arena. Aamir Khan's 'Dangal' will be released next year in Christmas.