Cameron Bancroft appeared to imply Australia's bowlers may have known about the Newlands ball-tampering plot, which they strongly deny.
With the fourth Test heading for a draw amid wet weather at the Gabba, India look set to retain the Border-Gavaskar trophy.
Josh Hazlewood claimed a five-wicket haul, but unheralded duo Shardul Thakur and Washington Sundar starred in Brisbane on Sunday.
Australia were left frustrated as India held on for a draw in the third Test at the SCG.
Australia's bowlers head into day five needing eight wickets to seal victory over India in the third Test at the Sydney Cricket Ground.
Josh Hazlewood's spectacular run out of Hanuma Vihari was lauded by Pat Cummins.
A wonderful piece of fielding saw Josh Hazlewood run out Hanuma Vihari in Sydney on Saturday.
"I'm glad I've got them in my side." Australia head coach Justin Langer praised his pace attack.
Australia made light work of India on a remarkable third day in Adelaide, where the first Test was wrapped up.
India resumed 9-1 on day three of the first day-night Test, but Virat Kohli's side capitulated as Australia's merciless attack ran rampant.