India were 166 for six on the 4th day of the final cricket Test against Australia at Adelaide on Friday.The hosts set a daunting target of 500 before India . The visitors were left with an arduous task of batting out the entire fifth day to prevent the dominating Australians to sweep the series 4-0.Having lost 0-4 in England last year, India now face the ignominy of losing eight straight Test matches overseas.The star-studded line-up failed once again with skipper Virender Sehwag leading the way as he got out after smashing his way to a half century.Sehwag played in his customary manner during 62 off 53-ball knock before charging out to a full-toss bowled by Nathan Lyon. Ishant Sharma at 2 and Wriddhiman Saha at 0 were holding fort when the game closed for the day. The Indians were still trailing by 334 runs.Score: Australia 604 for 7 Declared in First Innings and 167 for 5 declared in Second Innings. India 272 all out in First Innings.