Adelaide: Chasing a massive 500-run target, India lost wickets at regular intervals to finish Day 4 on 166/6 against Australia in the fourth and final Test at the Adelaide Oval on Friday.
First innings centurion Virat Kohli (22) ran himself out on the final delivery of the penultimate over to add more misery to Indian innings soon after Nathan Lyon dismissed VVS Laxman (35) in the previous over.
India lost four wickets in the last session to continue their poor show Down Under as Australia are poised to whitewash the visitors on the final day.
Ishant Sharma was two not out and Wriddhiman Saha had yet to score at the close of the day.
India lost Sachin Tendulkar (13) and Rahul Dravid (25) early in the last session. Spinner Lyon continued his good run as he dismissed Tendulkar soon after pacer Ryan Harris got rid of Dravid.
India struggled to give a decent fight back and were reduced to 110/4 early in the final session of penultimate day of the Test.
Dravid played a tentative innings of 25 from 71 balls which include two hits to the fence, whereas Tendulkar hit same number of fours for his 13 off 34 balls.
Earlier, Dravid and Tendulkar took India to 92/2 at tea after they lost Virender Sehwag (62) and Gautam Gambhir (3) in the post-lunch session.
Lyon took the prize-wicket of dangerous Sehwag to give the hosts a crucial breakthrough.
Sehwag led the run chase for India with his typical 62 runs off just 53 balls as he raced to fifty in 36 deliveries. He hit twelve boundaries in his rapid knock before throwing his wicket to a mistimed shot resulting to an easy catch for Ricky Ponting at cover.
Sehwag added 66 runs for the second wicket with veteran Rahul Dravid as they tried to resurrect the Indian run chase after losing Gautam Gambhir (3) early.
India started poorly as they lost opener Gambhir inside five overs. Pacer Ryan Harris struck early in 4.3 overs to dismiss Gambhir cheaply and reduce India to 14/1.
Australia declared their second innings soon after the play resume in the post-lunch session and set 500 runs target for India with less than five sessions left in the match.
Ricky Ponting (60) and Brad Haddin (11) took Australia's overall lead to 499 runs when skipper Michael Clarke declare their innings close. Australia scored 167/5 in 46 overs in their second innings of the match after they declared their first essay at 604/7 on Day 2.
Australia lost Clarke (37) and Michael Hussey (15) in quick succession in the morning session of the fourth day of the fourth Test on Friday.
The hosts were 154/5 at lunch in their second innings with an overall lead of 486 runs with Ponting and Haddin at the crease.
Ishant Sharma trapped Hussey to give India second breakthrough. Umpire Dharmasena took his time before giving Hussey, who wasn't happy with the decision, marching orders. Australia lost their fifth wicket at the score of 147.
Ricky Ponting, who added 71 runs for the fourth wicket with Michael Clarke, hit another fine half-century to take Australia's overall lead past 475-run mark. Ponting's 50 came off in 73 balls and included four boundaries.
Seamer Umesh Yadav got rid of Clarke, who scored 43-ball 37 with the help of four boundaries. Australia lost their fourth wicket at the score of 111.
Yadav's full-length delivery got a faint outside edge from Clarke's bat en-route to wicketkeeper Wriddhiman Saha's hands.
Ponting hit two successive boundaries off Ishant Sharma to bring up 500 runs for the series and also take Australia's overall lead past 400-run mark against India. .
Clarke and Ponting resumed Australia's second innings on Day 4 after India conceded a huge first innings lead of 332 runs after the end of third day's play at the Adelaide Oval.
Brief scores
Australia 7 for 604 dec and 5 for 167 dec (Ponting 60*)
India 272 and 6 for 166 (Sehwag 62, Lyon 3-57)
Status India need another 334 runs to win