Mumbai: Actor Aamir Khan has taken a break from the shoot of his upcoming film “Dhoom 3″ to celebrate his sister Nikhat’s 50th birthday.

The 47-year-old was scheduled to leave for Chicago on August 3 for “Dhoom 3″ shooting but postponed it later as the family planned to throw a birthday party for Nikhat.

Aamir has been busy juggling his TV show “Satyamev Jayate”, Reema Kagti’s “Talaash and “Dhoom 3″.