India has risen to No. 1 in the ODI rankings, while Australia toppled to fourth place after their defeat to Zimbabwe on Sunday.
Elton Chigumbura lifting his No. 10-ranked team to only their second success against Australia - the first in 31 years - has meant South Africa and Sri Lanka have leap-frogged the free-falling Australia, who were joint-No. 1 with India ahead of that match.
India had equalled Australia's points tally following their victory at Trent Bridge, in the third ODI against England on August 30th.
Sri Lanka is currently number 3 in the ODI rankings.