4. Shreyas Iyer 

Since cricket world cup 2019, Shreyas Iyer has cemented his place at number 4 for India in ODIs. The right-handed batsman has been brilliant in the middle order for India both home and away. In the last ODI series against New Zealand, Iyer was the leading run-getter for India and showed he is an ideal number 4 batsmen. 

He will be tested in Australia on his first tour and he will surely get a barrage of bouncers when he comes out to bat. However, Iyer has shown that he has a really good temperament which allows him to score runs against quality oppositions. 

ODI career

Overall: 18 matches, 748 runs, average 49.8, 1 century 

Vs Aus: 3 matches, 55 runs, average 27. 50