The dip in food-inflation was on account of moderation seen in the prices of onions, fruits and poultry items.
The prices of onions came down to 42.03% and fruits to 16.57%, while prices of vegetables rose to 22.42%.
Overall primary articles which contributes 20% in the WPI recorded 13.34% inflation for the week ended August 27, up from 12.93% in the previous week.
Prices of non-food articles also surged to 19.88% as compared to 17.19% a week earlier.
Overall inflation stood at 9.22% in July.
The Reserve Bank of India (RBI) has hiked key policy rates 11 times since March 2010 to combat sticky inflation and the next mid-quarter review is due on September 16.