Australia were bowled all out by India on the first day of their second Test at Arun Jaitley Stadium, but half-centuries from Usman Khawaja and Peter Handscomb ensured the contest remains in the balance.
The tourists, who trail the four-Test series 1-0 after an innings defeat in Nagpur, managed to reach 263 in Delhi after opener Khawaja made 81 and Handscomb 72 not out.
India skipper Rohit Sharma (13) and KL Rahul (4) guided India to 21-0 at the close of play on Friday to leave them trailing by 242 in the first innings.
Khawaja put on a 50-wicket stand with David Warner (15) for the opening wicket, but Ravichandran Ashwin – who finished with figures of 3-57 – dismissed Marnus Labuschagne (18) and Steve Smith (0) in the space of three balls.
Warner was struck on the helmet and elbow in separate incidents prior to being dismissed cheaply and was later unable to field.
The returning Travis Head could only add 12 runs before Handscomb joined Khawaja to share 59 for the fifth wicket, but the latter was caught by Rahul in the covers, shortly before Alex Carey went for a duck.
Australia were 168-6 at that point, though Handscomb put on another 59 with skipper Pat Cummins, who was sent packing lbw for 33 by Ravindra Jadeja, who also removed Todd Murphy (0) in the same over.
Mohammed Shami returned to remove Nathan Lyon and debutant Matthew Kuhnemann, seeing him finish with figures of 4-60, as Australia were sent packing inside 79 overs.
India managed nine overs in response, with Cummins, Kuhnemann and Lyon unable to remove Rohit and Rahul, who will resume play on Saturday.
Ravindra reaches milestone figure
Jadeja took three wickets in 21 overs to become only the fourth Indian, after Anil Kumble, Kapil Dev and Ravichandran Ashwin, to record 2,500 Test runs and 250 wickets in the format.
It leaves India in a good position to push on and record a third straight Test victory over Australia for the first time since 2013, when winning four in a row against their Border–Gavaskar Trophy rivals.
Khawaja keeps things interesting
After his double failure in the first Test, Khawaja was bold at the start of play in Delhi and his 81 runs came off 125 balls, though he looked devastated when Rahul's leaping one-handed snare denied him a century.
It could have been better for Khawaja and Australia, but it may yet be enough in the grand scheme of things.
"We actually don't know what a good score is on this wicket," the left-handed batter told BT Sport. "If we bowl well, then 260 will be a competitive score.
"There is something in the pitch and plates were moving already when we were batting. Tomorrow will tell the tale of where this game is going."