Gilchrist, whose keeping was being questioned by experts during the series, disclosed in his autobiography 'True colours' that the Sydney Test controversy was actually the last nail in the coffin.
"I certainly did not retire because my sportsmanship was questioned, and I didn't even decide to retire that week but on top of everything else that had gone on I feel the controversies around the Sydney Test were the straw that broke the camel's back," Gilchrist wrote.
The former Australian Vice-captain said he was contemplating retirement from one-dayers since the World Cup in the Caribbean but was not thinking about retiring from Tests until the happenings had started to take a toll on his peace of mind.
Gilly turns his guns on Bhajji, Ganguly
"They'd (sister's family) booked their tickets well in advance, thinking it might be my last Test, but I certainly hadn't made the decision. I was beginning to resolve finally on pulling out of one-day cricket, but I wasn't quitting Tests. I hadn't even asked (wife) Mel to come to Adelaide (the venue of the fourth and the final Test against India).
"... We lost the toss and fielded all day, the (Sachin) Tendulkar factory churning out another ton. My concentration wasn't good. Even in the first session I was asking myself: 'Do I really want to just pull out of one-dayers? Should I keep doing both?"