The finale may have ultimately have turned out to be a damp squib but Virat Kohli's tourists utterly dominated what action there was to deservedly become the first side from the Asian sub-continent to take the honours Down Under.
With a series-levelling win out of the question, Australia will be hoping to hold on for a draw on day five of the final Test against India at the SCG.
The hosts were bundled out for 300 on the fourth day, which also forced them to follow-on at home for the first time in 30 years.
Paine said the Adelaide Test could have gone in his side's favour also and India won crucial moments thereafter in the series.
"It's a proud moment. We have faith in them going forward".
"You have seen how many players we are resting these days".
"As we've touched on a lot, we've got some other guys who are not far off returning as well".
The tourists, led by magnificent series from batting rock Cheteshwar Pujara and superb slinger Jasprit Bumrah, achieved it in clinical fashion to expose the vast void left by Steve Smith and David Warner's suspensions and raise questions about the potency of Australia's attack.
Peter Handscomb was not out 28 and Pat Cummins was on 25.
'I thought we actually had our chances to win the test match in Adelaide, India just outplayed us in big moments in that Test, ' Paine said.
India's trio of seamers Ishant Sharma, Mohammed Shami and Jasprit Bumrah, by contrast, were highly disciplined and executed their plans to perfection to exploit the weaknesses in the Australian batting.
"I have seen with experience and being in the field as to how hard it is to win here", Kohli said. We made mistakes, which we didn't make in this series.
'They take ownership of their skills.
"They have always bowled in areas which are challenging to you as a batsman".
"I think the players, if they get too caught up on why they're not in the team or they're feeling unlucky about selection and not being in there, that's when they lose focus on what they should be doing".
There was a century for captain Kohli, of course, and one in Sydney for the younger generation through the irrepressible wicketkeeper Rishabh Pant.
Indian sides have traditionally struggled overseas but there is now belief within the camp they can conquer any team, anywhere at any time. This, in turn, helped India chose from a variety of options throughout the month-long series.
"Although changing history or creating history is still not what I am thinking of, it is pure satisfaction of the hard work of 12 months, to understand that what we believed in has been proven right and regardless of the whole world being against you, if you are striving in the right direction with good intent, God's going to reward you".