Rani Mukerji, thy name is punctuality!

Rani Mukerji, who debuts on the small screen as the judge of Sony TV's new reality show "Dance Premier League", impressed the whole unit with her punctuality and professionalism.

"She was there dot on time, ready with make-up on before some of the other celebrities had even arrived in the studio. Once on the sets, she proved her total professionalism," said a source from the show.