The trauma of the attack led to his marriage breaking down and he moved to Australia.
For his part in the beating, Ah-Chong was sentenced to seven years and six months behind bars.
He went to the Court of Appeal and was partially successful - the conviction for aggravated robbery was quashed but other aspects of the appeal were dismissed.
Reddy lost his bid to the Court of Appeal against conviction but his appeal against sentence was allowed. The eight-month jail term was reduced to two months, allowing him immediate release.
Both men applied to the Supreme Court. Ah-Chong was concerned about the directions given by the judge to the jury at trial on the liability of parties to a joint enterprise. He also wanted a chance to appeal the way in which the verdicts were delivered.
Reddy also raised issues concerning delivery of the verdict and the judge's summing up. In addition he alleged failure of trial counsel to adduce good character evidence and contended that the Court of Appeal misread the relevant provisions of the Crimes Act.
In its judgment released today, the Supreme Court dismissed both applications, saying: "We are not persuaded that it is in the interests of justice for leave to appeal to be given in either case."