Dhawan made 116 and shared 167 runs with Dinesh Karthik (69) as India beat Zimbabwe by 58 runs to go 2-0 up in the five-match series.
TOSS: Brendan Taylor won the toss and Zimbabwe elected to field.
TEAM NEWS: India unchanged. Zimbabwe replaced Mutombodzi with Brian Vitori.
PITCH NEWS: The strip has an even covering of grass, and bowling first will give the team a slight advantage.
Zimbabwe need to win today or else they will have to beat India in all the remaining games to claim the five-ODI series.
India chased a mediocre 229 with ease to win the first ODI on Wednesday. That has given hosts Zimbabwe plenty to think about heading into the second game at the Harare Sports Club.