the following is from cricinfo wisden site
The only jarring part of the day came at the start of the Indian innings, when the course of play was altered not by the players of either side, but by the incompetence of an umpire. Steve Bucknor was appalling during India's tour of Australia, and consistently so, through first the Tests and then the one-dayers. I had argued then that Bucknor's powers seem to have diminished with age – for umpiring relies on physical faculties that only get worse as the years go by – and that umpires should be regularly tested by the ICC to see if their abilities are still intact.
It is scandolous that despite the Indian team's complaints about him, based on an entire series and not a handful of stray understandable mistakes, the ICC has taken no action on this matter. John Wright, India's coach, reportedly complained to the match referee yesterday about the poor umpiring, and Bucknor gave India more reason for anguish today. After not upholding a number of good appeals during Pakistan's innings, he gave Aakash Chopra out lbw, after Chopra had inside-edged the ball. Given that Rahul Dravid was out immediately afterwards, run out without facing a ball, Bucknor's mistake had a huge impact on the game. It is unfair to Bucknor that his legacy as an umpire should be tarnished by his performance when he is clearly past the peak of his powers, and it is unfair on the players as well. (It is also unfair that he should be judged by technology that is available to everyone but him.