Sam Fanning admitted to the offence and accepted the sanction proposed by ICC U-19 World Cup match referee Graeme Labrooy.
India expertly defended a low total to beat Australia by 74 runs to secure a spot in the semi-finals of the Under-19 World Cup.
Highlights, IND U19 vs AUS U19 World Cup: India beat Australia by 74 runs to reach the semifinals of 2020 Under-19 World Cup.
Under-19 World Cup: Australia beat England by two wickets, with the match going down to the last over.
West Indies beat England by 71 runs under the Duckworth/Lewis (D/L) method in their U-19 World Cup match, while Australia registered a 10-wicket win over Nigeria.
Defending champions India have been pooled with New Zealand, Sri Lanka and debutant Japan in Group A.
The India Under-19 coach feels that the hard work for the boys has just begun.
India won the title for the record fourth time after beating Australia in the final.
Prithvi Shaw and Rahul Dravid guided the Indian Under-19 team to a record 4th ICC World Cup title.
"There a lot of memories created. I can't express, what I am feeling right now. I am just happy," said Shaw after a historic victory.
Australia u-19 captain Jason Sangha heaped praise on the India u-19 team for their incredible performance throughout the tournament.
With a fourth crown, India surpassed Australia in the race for most U-19 World Cup titles.
Captain Prithvi Shaw joined the likes of Mohammad Kaif (2002), Virat Kohli (2008) and Unmukt Chand (2012) in leading the India to the U-19 World Cup title.
Rahul Dravid's boys rode on a disciplined bowling effort to restrict Australia to a modest total of 216 runs.
Highlights and action of the ICC Under-19 Cricket World Cup between India (IND) and (AUS) Australia at Mount Maunganui on Saturday.
Highlights, India vs Australia, ICC U-19 World Cup Final: Jonathan Merlo made a solid 76 before the India's left-arm spin duo of Shiva Singh and Anukul Roy sprung into action, limiting the opposition to 216 all out in the ICC U-19 World Cup final on Saturday.
Unmukt Chand had led India to their 3rd ICC Under-19 World Cup title in 2012.
The Indian fast bowlers have been in sensational form in the tournament so far.