Australia blew a strong start with yet another batting collapse in Sydney, leaving themselves a mountain to climb to stay in the fourth and final Test against India.
When play was abandoned half an hour early due to rain, they were 236 for six, still 386 behind with Peter Handscomb (28) and Pat Cummins (25) fighting hard to recover after some soft dismissals plunged the hosts into deep trouble.
Australia went to lunch at 122 for one but meekly surrendered soon afterwards, losing three wickets for 24 runs, with spinners Ravindra Jadeja and Kuldeep Yadav doing the damage.
Yadav ended with 3-71 and Jadeja 2-62.
While aggressive young opener Marcus Harris blazed a career-best 79, senior players Usman Khawaja, Shaun Marsh and skipper Tim Paine all failed to deliver when needed most.
"I got a start and a few of us got a start but none of us went on to get a big score so it's pretty simple to work out what went wrong," said Harris.
"We're a young group and we're trying to work it out and think on our feet but we're playing against the number one side in the world, so it's not like it's an easy thing to do."
Despite a tough task ahead, Harris remained optimistic.
"Obviously 600 is a big score to chase down or get a close deficit, but I think the more time we can occupy the crease, you never know what can happen."
India took a stranglehold on the match over the opening two days, posting a huge 622 for seven declared on the back of centuries from irrepressible Cheteshwar Pujara and livewire Rishabh Pant.
They lead 2-1 after victories in Adelaide and Melbourne and are fast closing in on a historic first-ever series win since they first toured Australia in 1947-48.
Yadav said India's fielding and catching practice was paying off.
"I feel like we are the best side in the world now when it comes to fielding," he said.
Khawaja was dropped on nought but failed to make the most of his second life.
At the other end the gritty Harris, who has shown flashes of brilliance in his short four-Test career, quickly found a groove with some crisp shots.
Harris went to lunch on 77 but added just two more before chopping a Jadeja delivery onto his stumps, blowing a glorious chance to kick on and make Australia's first century of the series.
So far, none of Australia's batsmen has reached three figures over the four Tests, with Harris' 79 the highest anyone has scored. In contrast, India have had a field day, compiling five centuries.
Australia gambled by picking inexperienced all-rounder Marnus Labuschagne to come in at number three and he settled in well, cracking seven boundaries in a stylish 38.
But he was sent packing by a blinding reflex catch from Ajinkya Rahane at mid-wicket off Mohammed Shami's bowling.
Marsh scored a century in Sydney against England this time last year, but was out for eight, getting an edge to Rahane at slip from a turning Jadeja ball.
The day got worse when Travis Head was caught and bowled by Yadav just before tea for 20 and as storm clouds gathered overhead Yadav clean bowled Paine for five.
It was left to Handscomb, recalled as a specialist in tackling spin, and paceman Cummins, who made a gutsy 63 in the third Melbourne Test, to try and repair the damage.