Put into bat, India scored 159 for seven with Yuvraj Singh showing glimpses of his destructive self with an innings of 60. On a slow track, Yuvraj initially struggled before blasting four sixes and five boundaries in a 43-ball knock.
Indian bowlers then faced little problems in skittling out the Aussies for a meagre 86 in 16.2 overs as Ravichandran Ashwin registered dminating figures of 3.2-0-11-4.
This was India's most facile win in a T20 match. The intensity was right there for the entire duration even in an inconsequential match as India would certainly be favourites going into the semi-final encounter for the first time in seven years.
None of the Australian batsmen could show stomach for fight as Mahendra Singh Dhonis men excelled in all departments yet again.
The Aussies were clueless against the spinners, circumspect against the pacers and the Indian fielders were excellent throughout the duration.
Ashwin got the first breakthrough when Finch tried to slog him and Kohli took a simple catch at mid-on. Cameron White (0) looked distinctly short of match practice as he miscued while trying to drive Bhuvneshwar Kumar on the up and Ravindra Jadeja judged it well running backwards from his mid-on position.
Young Mohit Sharma, getting the first match in place of Mohammed Shami, then bowled an off-cutter which breached through Shane Watson's (1) defence. Watsons sequence of scores in this World T20 has been 4, 2, 1.
David Warner (19) and Glenn Maxwell (23) can win matches on their day but they were simply interested in trying to slog the spinners across the line. Watsons slog sweep off Ashwin was taken brilliantly by Rohit Sharma running forward from his deep mid-wicket boundary position.
It was 44 for four and the match was sealed when Maxwell tried an audacious reverse sweep off the Tamil Nadu tweaker to get bowled. Operating from the leg-stump line, it was a straighter one and only the batsman was to blame for his downfall.
With half of the team back in the dug-out before the completion of 10 overs, the match was all but sealed. Skipper George Bailey (8) hit a six and the second cross-batted heave was his dismissal.
Brad Haddin (6) on current form wouldnt have lasted longer against Amit Mishra as Australia were down on their knees at 75 for seven.
Yuvraj powers India to 159/7
Yuvraj Singh finally got back to form with an impressive 60-run knock as India posted a competitive 159 for seven.
On a slow track, Yuvraj initially struggled before blasting four sixes and five boundaries in a 43-ball knock. It was also his eighth T20 International half-century in 38 matches.
Skipper Mahendra Singh Dhoni played the role of second fiddle to perfection, contributing 24 in an 84-run partnership for the fifth wicket.
Dhoni lost the first toss in the tournament and as Ravichandran Ashwin had said yesterday, were forced swim a tsunami considering the adverse conditions for batting first on a slow Sher-e-Bangla track.
It wasnt conducive for strokeplay as the Indian batsmen found out while trying to set a decent target. The Australian slow bowlers did a decent job in these conditions as India managed only 59 in the first 10 overs.
Australia opened their bowling with Brad Hodge and he got success removing the in-form Rohit Sharma (6) with a slider which the player tried to drive but got a thickish outside edge which went to James Muirhead standing at backward point.
Virat Kohli started with a slog sweep off Glenn Maxwell that went for a six and followed it by guiding Mitchell Starc to the third man boundary.
But it didn't last long enough as he tried to hoist leggie Muirhead over long-off but failed to clear Cameron White stationed for that catch.
Kohli's 23 came off 22 deliveries with two fours and a six. Ajinkya Rahane was gone when Bollinger got a delivery to pitch on the off-middle line, which moved a shade with Rahane trying to steer it down.
Brad Haddin held a regulation catch. Rahane scored 19 off 16 balls but couldn't utilise the opportunity he got due to Shikhar Dhawan's failure.