The road to victory at Chepauk is always difficult terrain. Two days have passed into another riveting contest and many more obstacles remain for either side. The Indians managed to conquer a few on Friday and nosed ahead of their Australian opponents. And it was the flamboyant Virender Sehwag who battled a few demons within and on the pitch to drive home the Indian advantage.But another middle-order disorder triggered by the mean and magnificent medium-pacers Jason Gillespie, Glenn McGrath and Michael Kasprowicz nearly closed the gates for the Indians. Rare bloopers by the Australian fieldsmen ensured that the Indians sneaked to a 56-run cushion with four wickets in the hut.The day’s proceedings mirrored the first day’s play. The ever-improving Irfan Pathan (14) merits as much mention as Sehwag for the manner in which he thwarted the Aussie attack in the first hour of play. Compact in defence, the young lad rarely put a foot wrong during a 55-run alliance. His senior partner too traded flashiness for correctness as they went about building a strong foundation.An error in judging a wrong ’un brought about Pathan’s dismissal and the world record for Warne but by then Pathan had fullfilled the task assigned to him. Unfortunately, none of the other premier batsmen displayed similar attributes: patience and perseverance. Rahul Dravid (26) did settle in, but only just. And for too little time.Sehwag then single-handedly dealt with the Australian attack as an out-of-sorts Sourav Ganguly (9) and a tentative VVS Laxman (4) perished in the last session.‘‘I always knew that once I scored a fifty, I could get a hundred. It was a matter of spending time at the crease,’’ Sehwag said, stressing, ‘‘nothing’s changed in my batting.’’ AUSTRALIA (1ST INNINGS): 235 (J Langer 71, M Hayden; A Kumble 7-48) INDIA (1ST INNINGS): (overnight 28-1) Y Singh c Gilchrist b Warne 8, V Sehwag c Clarke b Warne 155, I Pathan c Hayden b Warne 14, R Dravid b Kasprowicz 26, S Ganguly c Gilchrist b Gillespie 9, VVS Laxman b Gillespie 4, M Kaif not out 34, P Patel not out 27 Extras: (b-6, lb-1, w-2, nb-5) 14. Total: (six wickets, 100 overs) 291 Fall of wickets: 1-28, 2-83, 3-178, 4-203, 5-213, 6-233 Bowling: McGrath 20-3-63-0 (nb-2, w-2), Gillespie 27-7-55-2, Warne 29-3-95-3, Kasprowicz 19-4-45-1 (nb-3), Lehmann 5-0-26-0.