Aamir Khan pumping iron for his for 'Dhoom 3' circus act

Aamir Khan is reportedly shooting for his introduction song as well as several scenes for Dhoom 3 at Film City. As the star essays a gymnast (a circus gymnast to be precise!) in Vijay Krishna Acharya's thriller, a circus tent has been put up for the shoot.

The star has also become even more leaner as preparation for the shoot. Aamir is seen pumping iron around the sets. He wants to be fit as a fiddle. He has been training day in and day out for his look keeping his diet in check despite his other commitments.