Where the umpires erred?

Here is how umpires Steve Bucknor West Indies and Mark Benson of England dealt deadly blows to India in the second cricket Test against Australia. 

Day 1:

# Australian skipper Ricky Ponting nicked a Sourav Ganguly delivery going the leg side to wicketkeeper Mahendra Singh Dhoni. Ponting, who was at 17, did not walk as Benson turned down the Indian sepal. The skipper went on to score 55 before being ironically given out leg before despite getting an inside edge.

# Then came the blunder which probably changed the course of the match. All rounder Andrew Symonds edged Ishant Sharma to Dhoni but to the horror of the fielding side, Bucknor remained unmoved. Symonds was given another reprieve when the third umpire shockingly erred in giving him not out on a stumping appeal. The right hander went on to score an unbeaten 162 to take Australia to safety after being 134 for six.

Day 2:

# Another escape for Symonds as Bucknor turns down a close stumping appeal without consulting the third umpire. 

Day 3:

# One of the rare umpiring blunders that went India's way as Sachin Tendulkar survived a close leg before shout when on 38 before going on to score his 38th Test hundred.

Day 4:

#  Benson turns down an Anil Kumble appeal for a leg before against Michael Hussey despite the ball hitting the batsman's pads plumb in front. Hussey was on 22

# Benson is at it again, Hussey edged one from RP Singh to Dhoni but both the batsman and the umpire were unmoved. Hussey was on 45 at that time and went on to score an unbeaten 145.

# Having taken Hussey and Clarke in consecutive, Kumble seemed to have got his hat-trick after having Symonds trapped LBW but Bucknor says no. Symonds scored 61.

Day 5:

# Probably the most horrifying day for the Indians, Bucknor gives Rahul Dravid caught behind of Symonds despite the ball missing the bat by miles.

# Sourav Ganguly is caught at slips by Michael Clarke but the catch appeared to have come off the ground. However, instead of going to the third umpire, Benson checks with Ponting, who quite expectedly calls it clean.