Retail inflation, however, inched up to 3.99 per cent in September 2019, compared to 3.7 per cent in the same month a year ago. Retail food inflation in September 2019 saw a higher rise at over 5 per cent, compared to just 0.5 per cent in September 2018.The RBI has stated that the headline retail inflation, measured by changes in the consumer price index, moved in a narrow range of 3.1 per cent and 3.2 per cent between June and August. “While food inflation picked up, fuel prices moved into deflation; and inflation excluding food and fuel softened in a broad-based manner in August, and offset the firming up of food prices,” the RBI statement of October 4, 2019, had noted.