Australia captain Ricky Ponting believes India "ran out of puff" as they surrendered the VB Series with a 208-run defeat in the second final.
"If you look back at the series, our batting was superior to India's and in the last two games it was chalk and cheese," said Ponting.
"They played as well as they can, especially their batsmen in the Tests and the start of the one-day series.
"But you just can't keep playing that well on a two-and-a-half-month tour."
The two sides fought out a memorable 1-1 tie in the Test series but India only managed to beat their hosts once in six attempts in the one-day tournament.
After winning the first final in Melbourne on Friday by seven wickets, Australia piled on 359 -5 in Sydney, equalling their highest ever total made against India at last year's World Cup final.
"We didn't see too many weaknesses in their batting at all but, as the series went on, we made some adjustments that helped us," Ponting added.
"We probably played as well as we can in the last two matches. I thought we'd get around 300 today but I never thought we'd get to 359.
"But we timed our run to perfection. I think we had the momentum on our side going into the finals, and momentum is a big thing in cricket."