Rohit, however, fell just eight runs short of a century, departing after a belligerent 41-ball 92 with seven boundaries and eight maximums as India made 212 for six after being put into bat first.
Australia made one change to the team that suffered a shock 21-run defeat by Afghanistan, with left-arm fast bowler Mitchell Starc replacing spinner Ashton Agar.
All four teams in Group 1 are still a mathematical chance to progress to the semi-finals heading into the final two matches.
If India win, they would move onto the semis with six points and Australia would remain on two points and their qualification hopes will be depend on the outcome of the Bangladesh-Afghanistan match the next day.
In front of a deafeningly pro-Indian crowd at the Ahmad Bin Ali Stadium in Doha, Australia made hard work of the first half, squandering a few decent chances while the underdogs defended raggedly and eyed opportunities to pounce on the break.
For India's women, it was their first Test victory against Australia after 11 attempts since 1977
“It’s tough to watch boys like this,” Dravid told the media after his team’s heartbreaking six-wicket loss to Australia in the final.
Pat Cummins' men stunned the nearly 100,000 crowd in Ahmedabad on Sunday for a six-wicket victory over previously unbeaten India, breaking home hearts.
Australia's six-wicket win over India in front of a 92,000 crowd at Ahmedabad's Narendra Modi Stadium may have been a disappointingly one-sided final
Jadeja's 3-28 off his left-arm spin helped dismiss Australia for 199, a total India achieved with 52 balls to spare but only after top-order wobble when they lost three wickets for just two runs.
Kohli and Rahul put together an unbeaten century stand in Chennai to thwart Australia's bowling in the 150th ODI meeting between the two teams.
Former Indian cricketers including Sunil Gavaskar also slammed India's batting after a disappointing show in their loss to Australia in Sunday's World Test Championship final.
"At the time, I definitely thought I caught it," Green, who also pulled off a blinder of a catch at gully during India's first innings to dismiss Ajinkya Rahane, told reporters
Protesters stopped traffic near The Oval on Monday and had to be cleared by police before the Australian team could reach the venue for training
India batting great Sachin Tendulkar reckons the spin-friendly Oval pitch will make India a confident side and their tweakers could become doubly dangerous if they are able to get “that drift” and make the ball talk in the air
Australia's Ricky Ponting, India's Ravi Shastri, Pakistan's Wasim Akram, England's Ian Bell and New Zealand's Ross Taylor sat down ahead of the showpiece Final in London to speak about the one-off Test
The WTC final and Ashes series are taking place amid fears the future of the long-format game could be threatened by the growth of global franchise Twenty20 cricket, with top players set to be offered year-round contracts across multiple leagues