India snapped their five-match losing streak in Australia and levelled the two-match Twenty20 series with an eight-wicket victory at the MCG on Friday.
After restricting the new-look Australians to 131 all out, Gautam Gambhir then led the India run chase with aplomb, finishing unbeaten on 56 as the tourists surpassed their target with two balls to spare.
Captain Mahendra Singh Dhoni provided valuable support at the death to finish unbeaten on 21 from just 18 balls and he will now hope his side can take their winning momentum into the triangular one-day series, starting Sunday.
Despite the contributions of Gambhir and Dhoni, it was a disciplined bowling and fielding display which ultimately paved the way for a much-needed India victory.
Ravindra Jadeja was named man of the match after playing a pivotal role in the run outs of Australia top-scorer Aaron Finch (36) and captain George Bailey (3), as well as dismissing the dangerous Dave Hussey for 24.
India seamer Praveen Kumar gave his side a dream start when he claimed the prized scalp of David Warner in the third over of the match and then removed Shaun Marsh two balls later.
His figures of 2-21 were the best in the match, however inexperienced leg-spinner Rahul Sharma (2-29) was equally-effective and made Mitchell Marsh and Brad Hogg his first international victims.
While wickets tumbled all around him, Australia wicketkeeper Matthew Wade held his nerve to at least ensure the home bowlers would have a competitive score to defend.
The Tasmanian gloveman, who smashed 72 in the opening ODI, struck 32 as Australia eventually posted 131 all out.
India made a storming start to their reply with Gambhir and Sehwag adding 43 inside seven overs to put themselves ahead of the rate.
Sehwag (23 off 16 balls) perished midway through Hogg's opening over, inexplicable swatting a full toss straight to Shaun Marsh at extra cover.
Gambhir kept the scoreboard ticking over and was ably supported by Virat Kohli (31 off 24 balls).
Kohli had found the rope three times before he edged Mitchell Marsh through to Wade, however Dhoni played a captains' innings to guide his side home.