Much is riding on Marsh, the 35-year-old veteran under enormous pressure to keep his place after a run of failures with the bat.
It was only a couple of weeks ago that Marsh posted a classy 163 not out for Western Australia to chase down South Australia's total from an unlikely position.
If Kohli and Ravi Shastri had the belief in their main bowlers, which they rightly do, four of them should have been enough in bowler-friendly conditions, while the struggling batting line-up needed to be shored up. Lucky they've got runs on the board.
India's batsmen escaped send-offs synonymous under banned Test skipper Steve Smith's watch. He moved past left-arm quick Mitchell Johnson for all-time five-wicket innings hauls. Aaron Finch and Shaun Marsh both threw away their wickets, while Marcus Harris, Usman Khawaja and Peter Handscomb all got starts but couldn't carry on.
The India number three fought and fought hard, which allowed India to comeback into the match and then supported by collective effort from bowlers and Ajinkya Rahane's 70 in second innings, India scripted a famous win at Adelaide albeit not before receiving a late scare from Australia's lower-order.
Still, he has some way to go to catch the Spin King Shane Warne, who bagged 37 during his illustrious career.
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It is India's first victory in a Test series-opener in Australia and their first Test win in the country since 2008.
Yet Pujara was frustrated by the nature of his dismissal with the final ball of the day as he was sensationally run out by Pat Cummins as he attempted to retain the strike.
In contrast, India's tail hardly played a shot all Test.
Ravichandran Ashwin led from the front with three wickets to his name while Ishant Sharma and Jasprit Bumrah took two wickets each as India bounced back strongly from their lacklustre performance on the first day.
Lyon did claim the key wicket of India skipper Virat Kohli (34) late in the evening session, but Australia look set to face a stiff target on a pitch that has so far proved hard to score on.
India 1-0 up against Australia in Down Under!
The brazen youngster is more reckless than risky. Really delighted with the way we played as team and put up a great fight!
This, however, is a very different side, with the vast majority of the Australian batting line-up looking to consolidate their places in the side.
This was the first time that India won the first match of a Test series in Australia.
"It just shows how strong a character he is and how good a player he is". The pitch also offered a bit of movement, making it important for the batsmen to get themselves in before they tried to accelerate.
Australian wicketkeeper Tim Paine endured a torrid time during the second innings, with 16 byes coming off Starc's bowling alone, with the general consensus being that there was little Paine could do to prevent the extra runs.