Bengaluru: Australia slipped to a stunning 75-run defeat on day four of the second Test in Bengaluru, bowled out for 112 in pursuit of 188.
Peter Handscomb made a valiant 24 but he fell hitting out to Ravi Ashwin, after Matthew Wade fell for a duck from the final final ball before tea, and Mitchell Starc and Steve O'Keefe could only contribute one and two respectively on the other side of the break.
Nathan Lyon was the last wicket to fall in a dramatic collapse of 6-11, hitting a return catch to Ashwin to hand the off-spinner his sixth wicket.
The first wicket to fall was Matt Renshaw (five), who edged Ishant Sharma for four through the slips cordon to get off the mark but had no such luck soon after, tickling one to wicketkeeper Wriddhiman Saha from the same bowler.
Steve Smith joined David Warner (17) in the middle, and immediately survived a big lbw shout from Ishant before sweeping off-spinner Ravi Ashwin to the fence to kick-start his innings.
Warner then lofted Ashwin over long on for six as the deficit fell below 150, though the left-hander fell when he was struck on the pad from the off-spinner attempting to sweep and given out by the standing umpire.
The left-hander reviewed the decision and ball-tracking technology appeared to show he was struck outside off stump, however the impact was deemed inline and the batsman was sent on his way.
A short time later, Shaun Marsh (9) was struck on the pad outside off stump while not offering a shot to Umesh Yadav, and was given out to leave the tourists 3-67.
After a lengthy chat with his captain, Marsh opted not to review, only for ball-tracking technology to later show the ball to be missing off stump.
Smith made his way to 28 but was undone by a Yadav delivery that kept particularly low and thumped into the batsman's pads in front of the stumps.
The Australia captain considered a review, discussing the subject with Peter Handscomb before the younger partner appeared to suggest Smith look towards the visitors' viewing area.
Earlier, Pace bowler Josh Hazlewood grabbed six wickets as India dramatically collapsed to 274 all out in their second innings, leaving Australia a target of 188.
Hazlewood notched career-best figures of 6-67 while left-arm quick bowler Mitchell Starc and left-arm spinner Steve O'Keefe took two wickets apiece each as India folded on the fourth morning in Bangalore.
India, who resumed the day on 213 for four, started steadily with overnight batsmen Cheteshwar Pujara and Ajinkya Rahane extending their stand to 118 for the fifth wicket.
Rahane, who reached his 11th Test fifty with a boundary off Starc, and Pujara handled the spinners with relative comfort early on.
But upon taking the second new ball saw Starc and Hazlewood tore through India's batting with a burst of four wickets in nine balls.
Rahane was first to go, trapped lbw by Starc on a successful Australia review after being given not out on the field.
A fired-up Starc then shattered Karun Nair's stumps next ball with a full, in-swinging delivery and was only denied his hat-trick when Wriddhiman Saha managed to avoid a being out lbw by getting a thick edge on another full delivery that was hooping in towards middle stump.
Hazlewood got in on the action in next over, snaring the key wicket of Pujara as the batsman failed to handle a short, rising delivery and lobbed a catch to Mitchell Marsh in the gully.
Three balls later Hazlewood bowled Ravichandran Ashwin for his fifth scalp of the innings and in His next over Hazlewood induced Umesh Yadav to loft a drive to mid-off as India collapsed from 238 for four to 258 for nine.
Saha, who finished unbeaten on 20, managed to eke out a 16-run last-wicket partnership with Ishant Sharma before O'Keefe struck on the stroke of lunch as India were all out for 274, after having resumed the day at 213 for four.
India - 189 (Rahul 90, Lyon 8-50) & 274 (Pujara 92, Rahane 52, Rahul 51, Hazlewood 6-67)
Australia - 276 (SE Marsh 66, Renshaw 60, Jadeja 6-63) and 112 (Ashwin 6-41)
Result - India won by 75 runs