Former India cricketer Mohinder Amarnath on Monday criticised Mahendra Singh Dhoni's men for taking a depleted but spirited Australian side too lightly and said the hosts' overconfidence eventually cost them the ODI series.

"I think, Indian team made a mistake by taking their opponents lightly. Overconfidence was the major factor (in the defeat). We did so many mistakes on the field and our bowling was also not upto the mark in the series," Amarnath said.

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Former India cricketer Mohinder Amarnath