Australian captain Ricky Ponting defied India's bowlers with a spirited half-century as his team fought a grim battle for survival in the final Test on Tuesday.
After Sachin Tendulkar had made 214 to give India a slender 17-run lead, the Aussies slumped to 131-5 in their second innings before recovering to post 202-7 by stumps on the fourth day.
Ponting made 72, his second half-century of the match, when seamer Zaheer Khan trapped him leg-before towards the end of the day's play to put India on top.
Australia, seeking a series-levelling win after losing the first Test in Mohali by one wicket, start the final day's play 185 runs ahead with three wickets in hand.
Watson was trapped leg-before by left-arm spinner Ojha, while Katich edged a catch to wicket-keeper Mahendra Singh Dhoni in off-spinner Harbhajan's next over.
Seven runs later, Michael Clarke was stumped by Dhoni off Ojha to reduce the tourists to 65-3, barely 48 runs ahead.
Earlier, India took their overnight score of 435-5 to 495 before they were all out at the stroke of lunch in reply to Australia's 478.
Tendulkar's dismissal at 486-5 triggered a lower order collapse in which the last five Indian wickets fell for nine runs.
Tendulkar, who was on 191 overnight, reached his double century 25 minutes after the start with a quick single off Ben Hilfenhaus.
The 37-year-old, who is in his 21st year in international cricket, has already notched up six three-figure knocks this year, besides making 98 in the previous Test in Mohali.
Tendulkar was dismissed in the second over after resumption of play when he edged an intended cut off fast bowler Peter George onto his stumps, giving the tall South Australian a treasured first Test wicket.
The Indian's vigil at the crease lasted nearly nine hours, in which he hit 22 boundaries and two sixes.
Hauritz claimed the last two wickets, including Dhoni for 30, to finish with two for 153 from 39.5 overs.
Left-arm fast bowler Johnson was the most successful bowler with 3-105, while George took two wickets.
Source: AFP South Asian Edition