Indian star Virat Kohli has been fined after admitting to bump Australian teen sensation Sam Konstas during a dramatic opening to the Boxing Day Test.

The ICC also confirmed on Thursday night that it had docked Kohli one demerit point, meaning he avoids suspension, as well as docking him 20 per cent of his match fee.

Umpires Joel Wilson and Michael Gough, third umpire Sharfuddoula Ibne Shahid and fourth umpire Shawn Craig all reported Kohli.

He admitted to the offence and accepted the penalty from Andy Pycroft, who is officiating in his 100th Test as match referee.

The ICC said Kohli "walked up to batter Sam Konstas and negligently bumped his shoulder with the batter inappropriately."

The flashpoint comes days after the Indian superstar took exception to local media when he arrived in Melbourne.

Former Australian captain Ricky Ponting had no doubt Kohli had initiated the contact, with the Indian veteran and the Australian teenager bumping shoulders after the 10th over.

"Look at the way Virat walks. Virat walked one whole pitch over to his right and instigated that confrontation - no doubt in my mind whatsoever," Ponting said on the Seven Network.

For those of you still thinking it was Konstas who initiated the impact, let me put it into cricket terms for you. #AUSvIND #konstas #kholi pic.twitter.com/GqJ1kFSWch? ???? ? (@MarkEMarkAU) December 26, 2024

Konstas was clearly riling the tourists in the midst of his astonishing Test debut - moments before he and Kohli bumped shoulders, paceman Mohammed Siraj had given the teenager a mouthful.

After he was dismissed for 60, Konstas said the incident had caught him by surprise.

"I think the emotions got to both of us. I didn't quite realise, I was doing my gloves and then a little shoulder charge. It happens, it's cricket," he told the Seven Network.

That's pathetic from Kohli #AUSvIND pic.twitter.com/cFjKoRG2hz? Ed (@terkey76) December 26, 2024

Immediately after the contact, Konstas turned in surprise and Kohli reacted, as if to suggest it was the Australian's fault.

Fellow opener Usman Khawaja, an amused spectator to Konstas's batting fireworks, stepped in and put an arm around Kohli as he played peacemaker.

Gough also had words at the time with Kohli and Konstas.

Indian great Ravi Shastri, who used to be Kohli's Indian coach, was unimpressed.

"That's totally unnecessary, we don't want to see that," Shastri told Fox Sports.

"Virat's a senior player, he's been captain ... he'll have his own explanations with regards to that, but it's one thing you don't want to see.

The Australian debutant reacted to the incident in the best-possible way, belting the first ball of Jasprit Bumrah's next over for four on the way to making 60.

"(Konstas) has definitely gotten up their nose a little bit," Ponting said.

"Yes, he's flustered them. Yes, he's got up their nose. Yes, there is some frustration out there."

Kohli had a bad start to his visit to Melbourne for the Boxing Day Test, taking local TV reporters to task when they filmed members of his family at the airport.