India's annual food inflation, based on wholesale prices, moved up to 13.68 percent for the week ended Oct 31 from 13.39 percent for the week before, as per official data released Thursday.

The 52-week average prices of onions were higher by as much as 33.4 percent and potatoes became costlier by 27.9 percent, according to the limited data on wholesale price index released by the commerce ministry.