He scored only eight runs from his first 90 balls, but picked up the pace after opener Shubman Gill departed for 91 with the score on 2-132. Pujara was dismissed for 56 off 211 balls.
When Pat Cummins took his fourth wicket with the dismissal of Mayank Agarwal for nine the score was 5-265, and the match was still evenly poised,
However, Pant steadied the ship with the help of debutant Washington Sundar.
The result meant that India retained the Border-Gavaskar Trophy.
Australia won the first Test in Adelaide after India was dismissed for only 36 runs in its second innings.
Despite the absence of tour captain Virat Kohli, who returned to India after Adelaide to be with his film-star wife for the birth of their first child, India struck back to win the second Test in Melbourne before the third Test at the SCG was drawn.
The fourth Test result was through no fault of pace bowler Pat Cummins who took four wickets for 55 runs off 24 overs. Nathan Lyon, playing in his 100th Test, took two wickets.
The visitors’ achievement was all the more remarkable because of the injury toll they suffered throughout the series.
Pace bowling spearhead Jasprit Bumrah was ruled out of the final Test along with spinners Ravichandran Ashwin and Ravindra Jadeja. Fast bowlers Mohammed Shami and Umesh Yadav also succumbed to injury during the series.
Pant had briefly threatened to take the Sydney Test away from Australia, until his dismissal forced India to change tack and play for a draw.
He was promoted to number five in the batting order on the final day in Brisbane, a clear statement of India intent to play for win.
When Agwaral was dismissed, India needed 69 runs off he final 15 overs but some cavalier hitting by Pant got India home to the the cheers of their raucous supporters.
Washington Sundar, who scored 62 in the first innings, fell to Lyon with only 10 runs to get, before Shardul Thakur was out for two with only three runs left.