As per the latest ICC table, India are back on top with 117 points while Australia are second with 116 points.
India lost their No 1 spot in the ODI ranking on Wednesday when they lost to New Zealand in the second one dayer at Hamilton by 15 runs courtesy Duckworth-Lewis method.
India were on 119 points before the second ODI against New Zealand while Australia were on 118 points. The defeat against New Zealand saw India losing a couple of points and slipped behind Australia at 117 points.
But in order to maintain their top rank, India must win tomorrow's third ODI against the Black Caps at Auckland -- failing which they will again lose their top rank.