Inflation Stays Above the RBI's 4% Target for a Fourth Month: Oil, Wholesale Prices and the Inflation Targeting Test
India's retail (CPI) inflation rose to 5.54% in September 2026. This is the fourth month in a row that inflation has stayed above the RBI's 4% target, though it is still inside the 2% to 6% tolerance band.
Food prices were the main push, with food inflation at 7.74%. A weak south-west monsoon and costlier onions, sugar, milk and cereals added to the pressure.
Costly crude oil and other commodities are a second source of pressure. Wholesale (WPI) inflation was already 9.92% in August 2026, with fuel and power prices up 22.93% over a year earlier. Economists expect these higher costs to reach retail prices with a delay.
Core inflation (inflation without food and fuel) is still moderate, which suggests most of the pressure is from the supply side.
The RBI's Monetary Policy Committee (MPC) raised the repo rate by 0.25 percentage points to 5.50% on 7 October 2026 and changed its stance to "calibrated tightening". Several economists now expect another hike at the December 2026 meeting, and some expect inflation to touch about 6% soon.
Flexible Inflation Targeting (FIT) Framework
Flexible Inflation Targeting (FIT) is the system under which the RBI's main job is to keep retail inflation close to a number fixed by the government. The target is 4% CPI inflation, with a band of 2% to 6%. It is "flexible" because the RBI may also keep growth in mind and does not have to hit 4% every month. The RBI is judged on whether inflation stays inside the band over time, not on a single month.
Four straight months above the 4% midpoint, with forecasts of nearly 6%, explain why the MPC has moved from cutting to raising rates. If average inflation were to cross 6% for three quarters in a row, the RBI would have to explain itself to the government under the FIT law.
Wholesale Price Index (WPI): Measuring Prices at the Wholesale Stage
The Wholesale Price Index (WPI) tracks how the prices of goods change when they are sold in bulk, that is, by producers and wholesalers, before they reach the shopkeeper and the consumer. It covers things like grains, vegetables, minerals, crude oil, electricity, steel, cement, chemicals and machinery. It does not cover services such as rent, haircuts, school fees or doctors' fees. It is compiled every month by the Office of the Economic Adviser (OEA) in the Department for Promotion of Industry and Internal Trade (DPIIT), Ministry of Commerce and Industry.
Wholesale inflation near 10%, driven by fuel and power prices up about 23%, shows that costly oil has already raised business costs. CPI inflation at 5.54% has not yet caught up fully. This WPI-CPI gap is a key reason economists fear retail inflation may keep rising towards 6%.
Imported Inflation: How Global Prices and a Weak Rupee Raise Prices at Home
Imported inflation is a rise in prices inside a country that comes from outside it. It happens when imported goods become costlier, either because their world price rises or because the rupee becomes weaker against the dollar. For India, crude oil is the biggest channel, because India imports most of the oil it uses. Costlier oil raises the price of fuel, transport, fertiliser and plastics, and then spreads to many other goods.
Higher global energy prices are a key reason inflation stays above target. Economists expect the "fuel-derivative push" from costly oil to reach retail prices with a lag, which is why the MPC raised rates even though core inflation is still moderate.
- CPI inflation, September 2026: 5.54%; fourth straight month above the 4% target
- Food inflation: 7.74%
- RBI inflation target: 4% (band 2% to 6%), renewed for April 2026 to March 2031
- FIT failure: average inflation outside 2% to 6% for three consecutive quarters (Section 45ZN report)
- Repo rate raised by 25 basis points to 5.50% on 7 October 2026; stance changed to "calibrated tightening"; SDF 5.25%, MSF 5.75%
- Next MPC meeting: 2 to 4 December 2026
- WPI inflation, August 2026: 9.92%; fuel and power 22.93%; manufactured products 8.37%; primary articles 7.76%
- New WPI base year: 2022-23 (957 items); Producer Price Indices launched 15 June 2026