The incident was captured before the start of the 22nd over with Kohli standing at second slip started eating what seemed to be an energy bar just before Marnus Labuschagne was about to take strike.
— Anna 24GhanteChaukanna (@Anna24GhanteCh2) 1678350083000
Kohli then was seen passing on the bar to his teammate Shreyas Iyer, standing next to him at third slip.
On the match front, Australia got off to a solid start after opting to bat in the fourth and final match of the series at Narendra Modi Stadium in Ahmedabad.
Opener Usman Khawaja hit his third half-century of the series to lead Australian innings. He put on an 79 with Steve Smith (38) for the third wicket.
India retained the Border-Gavaskar Trophy by winning the first two Tests before Australia made a remarkable fight back to clinch the third Test.
India will also qualify for the World Test Championship final if they go on winning this match.