But the victory has greater significance as Australia claimed a stunning come-from-behind series win for a huge confidence boost ahead of the World Cup - nearly exactly a year after a ball-tampering scandal rocked the sport and led to the suspensions of Steve Smith, David Warner and Cameron Bancroft. People have written us off for quite a while now.
Cummins was part of Australia's triumphant 2015 World Cup squad but only played two games during that tournament.
Australia's players celebrate the dismissal of India's captain Virat Kohli.
"Having said that, any team who's on a roll can be knocked out in the semis. they can be defeated immediately by a side that's more fearless on that particular day and wants it more and is more expressive as a side".
Kohli's star-studded outfit had been widely expected to be England's greatest threat at this year's World Cup but Australia's batsmen and bowlers have both stepped up on the current tour.
Meanwhile, Rohit also became third fastest to 8000 ODI runs and fastest to 6000 runs as an opener.
"The resilience we showed and the fight we showed being down 2-0, it would have been easy to roll over and the small moments in the game drift away and India win the series", he said.
Marcus Stoinis, returning from a thumb injury, and Ashton Turner, another hero from Australia's thrilling fourth ODI win, both contributed 20, and Jhye Richardson added a breezy 29 down the order, but wickets continued to tumble and a score of 272 was ultimately all the tourists could muster.
First time Australia have defeated India in a Twenty20 series, which was their first limited-overs series win in over a year. That said, India will surely look hard at the decisions they made, because being routed an Australian side missing the likes of Steve Smith and David Warner, may be a cause for concern.
No other Australian team has been able to come back from 2-0 down in a five-match series and no team has ever done it to India before.
Australia has another chance to impress ahead of the World Cup with another five-match series against Pakistan in the UAE starting on Friday March 22.
A 37-run win in the fifth and deciding ODI in Delhi was always in reach of Australia with a competitive score and tight bowling setting up the result.
After the first three ODIs, India rested MS Dhoni for the remaining matches - a decision disapproved by many fans.
First time India have been bowled out three times in any ODI series since 2012.