Retail Inflation Rises to 5.54% in September: Highest Since the New CPI Series Began
India's retail inflation (the yearly rise in prices that households pay) rose to 5.54% in September 2026, up from 4.83% in August and 4.45% in July.
This is the highest reading since the new Consumer Price Index (CPI) series, with base year 2024, started in January 2026. It is also close to a two-year high: the last higher reading was 6.21% in October 2024 (under the old 2012-base series).
The main driver was food prices, especially a sharp rise in onion prices. Freight (transport of goods) and eating-out costs are also rising. Rural households are feeling more pressure than urban ones.
Other pressures include a weak monsoon and El Nino (a warming of the Pacific Ocean that often weakens India's rains), costly crude oil linked to the US-Iran conflict, and a weak rupee that makes imports costlier.
Inflation is still inside the RBI's tolerance band of 2% to 6%, but it is now close to the upper limit.
A week earlier, the RBI's Monetary Policy Committee (MPC) had raised the repo rate by 25 basis points to 5.50%, its first hike since February 2023. The new data may support the case for keeping rates tight.
Consumer Price Index (CPI): How India Measures Retail Inflation
The Consumer Price Index (CPI) is a number that tracks how the prices of things a normal household buys change over time: food, clothes, rent, fuel, transport, health and education. When we say "retail inflation is 5.54%", we mean the CPI this September is 5.54% higher than in September last year. It is compiled and released every month by the National Statistics Office (NSO) under the Ministry of Statistics and Programme Implementation (MoSPI). This is the measure the RBI uses for its inflation target.
The September figure of 5.54% is a CPI reading under the new 2024-base series. It shows that, even after food's weight was cut, a sharp spike in vegetable prices like onion can still push headline inflation close to the 6% upper limit.
Monetary Policy Committee (MPC): How RBI Sets the Repo Rate
The Monetary Policy Committee is a six-member body (three from the RBI, including the Governor as chair, and three outside experts chosen by the central government) that sets the repo rate. The repo rate is the rate at which the RBI lends short-term money to banks. When it rises, loans across the country slowly become costlier, people borrow and spend less, and price rise cools down. The MPC's legal job, under the RBI Act, 1934, is to keep CPI inflation near a target set by the government.
Inflation at 5.54% is well above the 4% target and close to the 6% ceiling. This is why the MPC began raising rates in October, and why experts expect policy rates to stay tight until food prices, crude oil and the rupee settle down.
- CPI inflation: 5.54% (September 2026), 4.83% (August 2026), 4.45% (July 2026)
- Highest under the new 2024-base CPI series; last higher reading 6.21% in October 2024
- New CPI base year: 2024 (old: 2012); first print January 2026 at 2.75%
- CPI items: 358 (308 goods + 50 services); food and beverages weight about 36.75%
- Compiled by: NSO, MoSPI; released monthly
- RBI inflation target: 4% (band 2% to 6%) for April 2026 to March 2031
- Repo rate: raised 25 bps to 5.50% in October 2026; SDF 5.25%; MSF and Bank Rate 5.75%
- Main drivers: food (especially onion), freight, eating-out costs; risks from weak monsoon, El Nino, crude oil and a weak rupee