India's wholesale price index rose 12.14 per cent in the 12 months to September 6, marginally above the previous week's annual rise of 12.10 per cent, government data showed on Thursday.
The rate was above a median forecast of 12.09 per cent in a Reuters poll of analysts.
Inflation for the week ended July 12 was revised up to 12.13 per cent from 11.89 per cent.
The annual inflation rate was 3.46 per cent during the corresponding week of the previous year.
The wholesale price index is more closely watched than the consumer price index, which is published monthly, because it covers a higher number of products and is published weekly.