Uday Chopra, who will be reprising his role of Ali, tweeted, "Today Dhoom 3 officially begins with a Pooja at YRF."
Later he said: "For me, it begins with a killer leg workout. Guess that's my "Pooja"!
The third outing of the successful Dhoom franchise will star Aamir Khan, Abhishek Bachchan, Uday Chopra and Katrina Kaif.
The film is being directed by Vijay Krishna Acharya and is slated for release in 2013.