The comprehensive victory against England and Harbhajan Singh's brilliant comeback has raised questions as to what exactly will be a winning combination against George Bailey's men who have looked good in both their group league matches against Ireland and West Indies respectively.
Indian captain Mahendra Singh Dhoni has given clear indications that he would go in with five specialist bowlers, a move which will mean that India will have one batsman short. In that case, either opener Virender Sehwag or Yuvraj Singh may have to sit out of the match and Dhoni admitted that it would be a "tough decision".
While the England match was won with five bowlers, it was more about testing a different combination as the result had no bearing on the Super Eights classification.
It will be interesting to see what bowling combination Dhoni would prefer for the first 'super eight' game and whether he would opt for three spinners or three pacers.
On current form, Lakshmipathy Balaji is a better bowler at the death overs than the 33-year-old Zaheer Khan mainly because of the variety of slower deliveries that he has in his repertoire.
The two key batsmen in the Australian set-up are left-handers David Warner and Mike Hussey. The presence of the duo at the top of the order certainly means that Harbhajan's inclusion is necessary because of his stupendous record against the left-handers.
Ravichandran Ashwin, who was rested against England, will also make a comeback into the playing eleven. The other certainty in the bowling department is Irfan Pathan, who has been providing the team with breakthroughs regularly.
Match starts at 7.30 pm (IST).