Shubman Gill needs to score 200 runs against Australia to dethrone Babar Azam.
Gill is currently in second place in the ICC ODI batter rankings.
India and Australia will play a three-match ODI series starting on September 22.
The ODI series could serve as good practice for the upcoming ODI World Cup 2023.
India and Australia will face each other in their first World Cup match on October 8