India might be tempted to go with Rahul to open the innings along with Rohit Sharma. The former has played really well in the T20I series. So if India are looking at him as a backup opener, then he must get a few games before the 2019 World Cup.
If Rahul comes in, Dhawan might have to sit out. The southpaw got out for a golden duck in the first ODI and has been inconsistent in recent days.
Ambati Rayudu might bat at number four. He departed for 13 in the first but might surprise the visitors today.
Dhoni's presence among the youngsters makes a big difference. Kedar was more vocal about Dhoni's role in the first ODI. Hence, batting at number five suits him. It won't be a big decision if Dhoni is promoted to no 4.
Vijay Shankar had a very little role to play in the first ODI so we might see Pant at number six, where he can play the finisher's role. With Kedar and Jadeja doing well with the ball, India can go with an extra batsman or bowler or even an all-rounder.
The number one ODI bowler for India, Jasprit Bumrah, took the wicket of Aaron Finch, after which he conceded a lot of runs. He had rare off day. However, he is one of the best Indian bowlers and one of the trump cards for the World Cup.
Kuldeep Yadav would play ahead of Chahal even in the second ODI too. He is a clear match winner, hence India are unlikely to rest him for the remaining games.
India defeated Australia in the first ODI between to take a 1-0 lead in the five-game ODI series