Sourav Ganguly stressed the importance of carrying good Test form over to one-day cricket after India beat Australia by 19 runs in the VB Series.
India scored a Gabba record 303-4 to set up their first win over Australia in Australia since 1991.
The visitors had the better of the drawn Test series recently, but lost to the hosts in the first VB Series game.
Ganguly said: "India have done well in Tests. If they don't in the one-dayers all the hard work would go in vain."
The India skipper added: "It is the quality of batting and they have a reputation to maintain.
"We've just kept getting runs. We are doing well so far, but there is a lot of cricket left."
VVS Laxman stared in India's run-feast with an unbeaten 103, his third one-day century and first away from home.
"Laxman has improved a lot in the one-dayers," Ganguly said.
Lee's form is a major source of concern for Australia
early days he played a lot down the order. Batting at number
five or six he did not get enough opportunity.
"He also has been in and out of the team, but he is beginning to get regular and has improved his one-day batting immensely."
Rahul Dravid (74) and Sachin Tendulkar made meaty contributions, Tendulkar hitting 84 despite twisting his ankle in the second over.
Ganguly said Tendulkar could be rested for Tuesday's match against Zimbabwe, meaning he would join Virender Sehwag (shoulder) and Ajit Agarkar (calf) on the sidelines.
"We'll have to make sure that they play in the important games and are rested in the non-important games."
Brett Lee was a huge disappointment for Australia, returning 83-1 to continue his poor form since returning from ankle surgery.
Australia captain Ricky Ponting said Lee needed more time to show his best form.
"He didn't bowl as well as he could have and he's
got a lot of improving to do," Ponting admitted.
"He's just getting back into one-day cricket, he hasn't played
much of late so it's going to take him a little bit
of time to settle back into his role."
Australia, led by Matthew Hayden's first century on home soil, made a valiant attempt to chase India's target but found the task beyond them.
Lakshmipathy Balaji took four wickets and Irfan Pathan three as the hosts were dismissed with one ball to spare.
"Scoring 300 batting first, it was always going to be
tough for us to chase down," Ponting said.