Besides, the "All items less farm produce" or Core inflation, excluding prices of volatile agricultural produce, stood at 10.7 per cent in May 2018, down marginally by 0.2 per cent from the 10.9 per cent rate recorded in April.
India's annual retail inflation accelerated in May to 4.87 percent, government data showed on Tuesday, mainly driven by faster increases in fuel prices and a fall in the local currency, which pushes up prices of imported goods.
The ONS said petrol prices rose by 4.6p per litre between April and May 2018 to 125.3p - the highest since October 2014 - while diesel prices are 4.7p higher.
The committee which sets interest rates at the Bank of England will consider the latest inflation figures when it meets next month.
The Consumer Prices Index including owner-occupiers' housing costs (CPIH) - the ONS' preferred measure of inflation - was 2.3 per cent in May, up from 2.2 per cent in April 2018.More news: India vs Afghanistan, one-off Test
The report shows inflation increased by 11.6% (year-on-year) in May 2018 which is 0.87% less than the recorded rate in April, 2018 (12.48%).
On month-on-month basis, it stated the urban index rose by 1.10 per cent in May, up by 0.25 per cent from 0.85 per cent recorded in April.
The RBI in its bid to tighten inflation, increased repo rate last week, for the first time in more than four years.
This, it noted was down by 0.2 per cent from the rate recorded in April, which was 10.9 per cent. On a month on basis, it rose by 0.98% in the period under review.
The rise in the index was attributed to increases in prices of some staple food items like potatoes, yam and other tubers, vegetables, fish, bread and cereals, fruits and meat.More news: ‘Two leaders, one destiny’: Trump courts Kim with fake movie trailer
It stated the percentage change in the average composite CPI for 12 months period ended May over the average of CPI for the previous 12 months period.
The report read in part, "The Consumer Price Index, which measures inflation, increased by 11.61 per cent year-on-year in May 2018".
In its biannual World Economic Outlook, the International Monetary Fund said economic activity in 2018-19 will be lifted by strong private consumption as well as the fading effects of the withdrawal of high-value currencies and implementation of GST.
In addition, it stated that the rural inflation also eased 11.20 per cent in May from 12.13 per cent in April.More news: Two Norwegian lawmakers nominate Trump for Nobel Peace Prize