India has wrapped up a crushingly comprehensive 295-run victory over Australia in Perth to take a 1-0 series lead in the Border-Gavaskar series.
Despite Travis Head (89) and Mitch Marsh (47) showing some much-needed resistance throughout the day, Australia was bowled out for 238 just after tea, with debutant Harshit Rana finishing the match by clean bowling Alex Carey (36) with a superb off-cutting slower ball.
The manner of defeat will undoubtedly leave troubling mental scars for the Australians, who now have 10 days off before the day-night Test in Adelaide, starting on December 6.
Already staring down a world record run chase and reduced to 3-12 on the third evening, it took just seven balls before Australia lost its first wicket of day four, Usman Khawaja playing an ill-advised pull shot that he top edged to Rishabh Pant off the bowling of Mohammed Siraj.
Steve Smith (17) followed soon after as Australia slumped to 5-79 before Travis Head (89) and Mitch Marsh (47) offered some resistance with an 88-run partnership for the sixth wicket.
But when Head feathered Jasprit Bumrah behind after lunch, the writing was on the wall.
Alex Carey (36) comported himself with his usual grit, batting competently with the tail until debutant Harshit Rana clean bowled him and ended the match with a stunning slower ball just after tea.
Look back at how the fourth and final day unfolded in our live blog below and check out the full ScoreCentre.
Next up, Adelaide
Australia has not lost in its last seven Tests in Adelaide.
Last time India were here, they were steam rolled for 36.
A positive omen for Australia perhaps.
Although their aura of invincibility in pink ball Tests was ended by the West Indies last time out.
Can the Aussies hit back?
We'll back back for all the action in that Test from December 6.
Thanks for being with us throughout this first Test.
From myself and Jon Healy, good evening.
'To not panic is the key': Darren Lehmann
Former Australia coach Darren Lehmann is speaking on ABC Radio.
He says that there's no need to panic.
"To not panic is the key now," he says.
"We can say all these people are under scrutiny. World class players, you've got to give them time.
"If it happens again in Adelaide, then it's a concern.
"I'm pretty confident they will bounce back. They've got to figure out how to play Bumrah."
Australia won't make big changes: Cummins
Here's more from Pat Cummins on ABC Radio.
"Anything we tried, it didn't really come off," he says.
"It wasn't meant to be."
Cummins has also addressed the body language, with plenty of commentators describing the Aussies as flat yesterday.
"People can think that. I was out there and I felt it and I'm happy with how we went about it," he says.
He also addressed Marnus Labuschagne and Steve Smith's form.
"That's professional sport. We've all gone through patches where things aren't falling your way. Those two guys are putting in the hours in the nets and having the right conversations," he says.
"They're two champions and I'm sure they'll bounce back.
"I'm not a selector, but I'd be surprised if we made any big changes.
"I'm really confident that these are the best 11 guys. It's a sample size of one this summer."
As for any differing viewpoints between the batters and bowlers?
"We look after each other," he says.
"There's plenty of matches where the batters drag us out of sticky situations and vice versa.
"We challenge each other when we need to be challenged."
Jasprit Bumrah is player of the match
Here is the Indian skipper.
"We were put under pressure in the first innings," Bumrah says.
"But the way we came back. I am very proud.
"We were really well prepared.
"I was just telling everyone to have faith in their process and ability because over here, we have an opportunity to do something special.
"On a given day, experience does matter, but if you have faith in your ability you can do something special."
He pays credit to Jaiswal, whose big century helped set up the victory.
"We can't ask for anything else, [from] Jaiswal," he says.
"That was probably his best innings so far, because he left the ball well. He's an attacking player but he batted long."
Pat Cummins says it's 'disappointing'
Pat Cummins has to be dragged away from a chat with Jasprit Bumrah.
"Yeah, fairly disappointing," Cummins says.
"We thought our prep leading in was very good.
"One of those games where not much went right."
He says the long delay between the first and second Test "is what it is."
"You always want to get back on the horse pretty quickly, but we'll have a couple of days rest.
"We didn't really give ourselves a chance in a couple of different facets.
"There's a few different areas we need to clean up.
"There's a lot of experience there. I think they're going about their work pretty well."
A worrying start
Yep .... abject performance from Aus - less the first hour of play on day one. Agreeing that this is depressing and immensely worrying.
- Old timer
Don't worry, Old Timer.
There's still four Tests to go!
Might be worth mentioning that's two home Test defeats in a row for Australia...
Pink Test next up
Thanks for blogging 4 days of remarkable cricket Simon and Jon – looking on the bright side, it’s over now – the West will fade in our memories as we turn towards Adelaide and its pomegranate ball.
- Mike
The Adelaide Test is next, with the teams set for 10 days off before they lock horns again.
AUSTRALIA ALL OUT FOR 238, INDIA WINS BY 295 RUNS
A dominant win in the West for India.
Having been bowled out for 150 in the first innings, India have absolutely crushed Australia.
It's as dominant a victory as they could have ever dreamed of.
BOWLED HIM WITH A BEAUTY!
That is a peach of a slower ball, Carey was aware it was through him the moment he played the shot too early.
That takes extraordinary skill from Rana - a brilliant, brilliant way to end the match.
Carey goes for 38.
59th over - Rana carries on
BANG! Now Carey is struck on the body. That ball didn't get up at all and Carey, as he ducked, got hit on the ribs. That's a nasty one. Rana checks on Carey afterwards. He is nice after he's clobbered you, to be fair.
Carey pulls a short one to fine leg, no single taken.
Carey pulls through midwicket for a couple of runs, this slow outfield sucking all the speed out of the ball as it rolls across it.
58th over - Sundar has another
Carey cuts out to deep backward point, but they don't take a run.
Carey takes a step and defends. KL Rahul shows off his football skills, chipping the ball up off the ground via a couple of touches with each boot.
BIG APPEAL! Carey is struck on the pad, looked outside the line to me - and there was an inside edge too.
Bat pad and a slip in place. Carey laps that ball around the corner and takes a single.
Two balls for Josh Hazlewood to handle.
There are three men in close on the leg side, bat pad, leg slip and silly midwicket.
There is an orthodox slip as well but Hazlewood plays the ball away from all of them to see out the over.
57th over - Rana carries on
Carey defends solidly.
Bouncer from Rana, Hazlewood ducks as it flies over his shoulder.
Down the leg side, Carey does swish towards it but was never in danger of it hitting.
Good bouncer, Carey wanted to ramp it over the solitary slip, but there is a third man fine and the ball just kept following Carey as he leaned back and missed his throat by not much.
Carey drives square for a single, exposing Hazlewood to a single delivery.
Hazlewood did last almost an hour and a half in the first innings, more than all but one other batter, Mitch Starc, so he's not so delicate that he can't handle himself.
He defends the ball, which is then called as a no ball.
HIT HIM! On the helmet! Hazlewood turns his head and gets copped right on the back badge. That's gunna be a bit sore - I bet he wishes Rana hadn't overstepped the ball prior...
Rana and Kohli both go and check on Hazlewood, who says he's OK.
56th over - Sundar continues
Half surprised by this, half not. India is not in a rush.
There are going to be a lot of close catchers in place for Hazlewood though, lots of pads being applied.
Slip, leg gully, bat pad and silly point. Hazlewood leaves outside off.
FOUR! Nicely played by Josh Hazlewood through the covers! A ball that drifts in from Sundar but is dispatched regardless.
BEATEN! Turn and bounce. One of the first we've really seen turn from Sundar. A great ball, wasted on Hazlewood.
Hazlewood is forward, hit on the pad but via an inside edge. That was close.
Hazlewood defends the last.
55th over - Rana comes in
Josh Hazlewood is the new man in, at the non-strikers end.
BIG APPEAL! Carey is hit on the pads. There is a frantic, frenzied discussion and Bumrah relents and reviews!
It didn't look very out in real time...
Kohli was shouting "not height" during that discussion, and that might actually be the issue to be honest. It hit high on the pad as Carey got up on his toes.
Yep, too high. It's not out.
Two well-spaced slips in position. Carey pushes into the covers, pushes for a second and the throw hits Carey in the back as he dives for the line.
Carey defends solidly.
Carey clips off his pads into midwicket but there is no run taken - it would have had to be a quick one anyway but I think Carey wants to protect Hazlewood as much as possible.
Now Carey does want a single to square leg - there's not a single there though and he is sent back by Hazlewood.
The field is in, Carey pushes the ball to mid off and there is no run.
BOWLED HIM! LYON IS OUT!
India is one away!
Lyon played for spin, there was none and Lyon's straight bat was sown the wrong line.
Off stump makes that satisfying clunking sound and the Aussies are in their death throes here.
54th over - There are two to come from Sundar
Nathan Lyon defends solidly against his fellow spinner.
A sad Test in the West
No century for Head, no 50 for Marsh - I can't think of a more depressing Test match from Australia in a long time, nothing at all to celebrate...
- Scott
TEA: Australia 8-227 (Carey 30)
This now feels like the end is nigh soon after tea, with Nathan Lyon and Josh Hazlewood to come.
Mitchell Starc will be devastated with that end to an impressive dig, but what can you do in the face of that sort of miraculous take?
WHAT A CATCH!! Dhruv Jurel with a pearler at short leg to send Mitchell Starc packing
Starc tried to clip off his pads and Jurel just stuck the right hand up at it in pure reflex, and it was just one of those ones where it just stuck in the mitt.