Both Labuschagne and No. 4 Steve Smith, the mainstays of Australian batting, have struggled to get going in the series with the latter aggregating just 10 in four innings.
Both the Aussie batsmen were back at the nets on what would have been the fifth day of the second Test trying to find a method to counter the leg-side theory.
Smith, who was named Test player of the decade this week, has managed just 10 runs in the first two matches, while Labuschagne could not capitalise on the starts with scores of 47, 6, 48 and 28 in the four innings so far.
Labuschagne lauded Indian bowlers for coming up with "new ideas" in the second Test, not allowing them to score freely.
Siraj removed Marnus Labuschagne 2 run short of his half century as Australia lost half of their side within 150 runs and second session of the opening day.
India had made 244 in their first innings.
Cricket Australia shared a clip of Labuschagne where he was spotted copying Smith's crab-walk, leaves and unusual stance.
The legendary cricketer says Indian players are in Christmas mood after Prithvi Shaw and Jasprit Bumrah drop sitters.
Marnus Labuschagne got early lifelines within the first 15 balls of his innings as Wriddhiman Saha and Jasprit Bumrah missed chances to dismiss the Aussie batsman.
The Aussies, who had initially named David Warner, Will Pucovski and Joe Burns as openers for the first Test, suffered twin blows with Warner getting injured and Pucovski getting a blow on his head.
Labuschagne added that batting during the day, although easier, presents its own challenges for the batsmen as it becomes tougher to spot the ball in sunlight than at night.
Labuschagne said that he is preparing to bat at practice sessions and is not worried if he opens or bats at three.
Labuschagne, who contributed a solid 70 off 61 balls in the second ODI which Australia won by 51 runs on Sunday, has scored two hundreds in three Sheffield Shield matches.
Warner is out of the remainder of the limited-over series after sustaining a groin strain during second ODI in Sydney.
Labuschagne will join a squad of 21 for the three-match T20I series starting September 4 which will be followed by an ODI series after a long lay-off from international cricket due to the COVID-19 pandemic.
Marnus Labuschagne hailed Virat Kohli's ability in white-ball cricket and said he has learned a lot from the Indian skipper.
Labuschagne had played one Test against India in Sydney during the 2018-19 series and the eagerly-awaited four-match series in December will be an acid test for the fast-rising batsman
On extending his deal at Glamorgan, Labuschagne said, "It was an easy decision to extend my contract for another year and commit to Glamorgan and Wales long term."
Australian batsman Marnus Labuschagne has said that the players need to adapt to new rules as the primary objective is to 'get back on the field'.
India's tour of Australia will begin with a T20 tri-series in October and is scheduled to end with a four-match Test series in December. The speculation on the tour is because of the travel restrictions currently in place and the uncertainty surrounding how long it would take to control the pandemic.
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