SYDNEY, AUSTRALIA - JANUARY 06: Australian captain Steve Smith looks on during day four of the Third Test match between Australia and Pakistan at Sydney Cricket Ground on January 6, 2017 in Sydney, Australia. (Photo by Cameron Spencer/Getty Images)

Australia's horror second-innings collapse in Delhi, where 9 wickets fell in 91 minutes, came with plenty of talk about the validity of sweep shots, and Steve Smith has revealed he was angry over the shot he played to be part of the dramatic fall.

Smith was out for nine to Ravichandran Ashwin attempting to sweep, with Smith the second in the run of nine wickets to fall.

India's victory in Delhi confirmed the Border-Gavaskar trophy would remain on the sub-continent, with a now unassailable 2-0 lead after they won the trophy last time around in Australia.

Smith, who will take over as captain for the third Test with Pat Cummins back in Australia for a family matter, told reporters that he was left angry by the shot he played to get himself out, with the Test ending inside three days, as the first of the series almost did.

“I don't think there's been too many times I've walked off the field and I've gone, ‘What the hell am I doing?'” Smith told reporters in Indore on Tuesday.

“I was pretty angry. There hasn't been too many times in my career where I've actually come off and just been bedazzled by what I've done. It wasn't my finest moment.

“Certainly something to learn from, I'm still learning as well. It wasn't the way I wanted to play, particularly when I had the field set for all of us – they had the field out.

“We probably just rushed things a little bit and it's something we'll talk about … when we've got them on the ropes, we can slow things down. We don't have to play at such a high tempo and risky tempo.

“Because we had them where we wanted them, we had men out and the ability to get off strike. We just rushed it.”

Australia have defended their plans for the series, with Michael Di Venuto, who is serving as batting coach, suggesting after the Delhi Test that they had simply gone away from those plans.

They were plans which didn't work in Nagpur during the first Test as Australia lost by an innings, but had delivered Australia a one-run lead on first innings in Delhi before the ultimate collapse.

Another dry wicket is expected to be rolled out in Indore, with Australia missing both Cummins and David Warner.

The third Test starts at 3pm (AEDT) on Wednesday.