Inflation rose to 0.83 per cent for the week ended September 19 from 0.37 per cent in the previous week on account of higher food and fuel prices.
The wholesale price-based inflation stood at 12.13 per cent during the corresponding week a year ago.
The items that got costlier during the week include fish, spices, pulses, butter and coconut oil.
On the annual basis, prices of potatoes were up by a whopping 81 per cent, vegetables by about 50 per cent, sugar by 44 per cent, pulses by 20 per cent and rice by 19 per cent.
Although inflation continues to remain below 1 per cent, the 52-week average inflation for the week ended September 12 was at 3.03 per cent.
Inflation for the week ended July 25 has been revised upward to (-)0.71 per cent from (-)1.58 per cent estimated provisionally.