India’s inflation trajectory has taken a decisive turn higher, with August data reinforcing the case that the Reserve Bank of India can no longer afford to keep policy rates at current levels. Headline consumer price inflation rose to 4.82% in August from 4.45% in July, the highest reading under the new CPI series with 2024 as base year and the third consecutive month above the RBI’s 4% target midpoint. 

Food inflation, measured by the Consumer Food Price Index, climbed to 5.95%, with rural areas bearing a heavier burden at 5.23% overall and 6.13% for food, compared with urban inflation of 4.31%. The upward trend has been consistent: from 3.93% in May to 4.38% in June, 4.45% in July and now 4.82% in August.

Wholesale price inflation has moved in parallel, rising to 9.92% in August from 9.78% in July on the 2022-23 base year series. Fuel and power inflation stood out at a sharp 22.93%, up from 20.05%, feeding into food prices at 7.05%, manufactured products at a series-high 8.37% and primary articles at 7.76%. Food remains the dominant pressure point across both retail and wholesale indices, particularly certain vegetables and spices, while elevated energy costs linked to developments in West Asia and rising manufactured and input costs are broadening the base of price pressures.

Broadening Inflation Pressure
Looking ahead, inflation is expected to sustain its rise and potentially cross 6% by October-November. The feedback loop from elevated wholesale prices, combined with El Nino-related risks to food supply and persistently high crude oil prices, points to further upside. The persistent divergence between wholesale inflation near 10% and retail inflation at 4.8% continues to signal weak underlying demand rather than genuine price stability. Firms appear to be absorbing cost pressures, limiting full pass-through for now but storing up pipeline inflation that is likely to surface.

Stagflationary pressures are already visible in the real economy. Household wage and income growth remains muted, and sustained inflation risks compounding the challenge of low growth alongside rising prices. Interim first-quarter results from manufacturing companies illustrate the squeeze: sales grew 25.6% year-on-year across a sample of over 1,700 firms, yet raw material costs surged 40%, driven largely by a roughly 50% rise in average crude prices and broader input inflation. Value addition compressed from ₹5.5 trillion to ₹5.3 trillion, a 4.5% nominal decline, while the raw material-to-sales ratio jumped more than eight percentage points to 75.3%. These numbers underscore the high likelihood of further pipeline pressure feeding into final prices.

The external environment adds another layer of complexity. In the United States, August CPI held at 3.4% even as payrolls beat expectations and unemployment remained steady at 4.1%. Market pricing via the CME FedWatch Tool assigns roughly a 90% probability of a 25-basis-point rate hike at the Federal Reserve’s September 15-16 meeting—the first increase since July 2023 and the first under new Chair Kevin Warsh—which would lift the federal funds target to 3.75%-4.00%.

US 10-year yields have broken past 5% for the first time since 2006, reflecting rising debt levels near $40 trillion, AI-related crowding-out effects and an unsupportive geopolitical backdrop. For India, the $127 billion forex buffer mobilised through the FCNR(B) scheme provides useful short-term support for funding the trade deficit and stabilising financial conditions. Yet the surplus liquidity it has injected risks adding to domestic inflationary pressures, forcing the RBI to balance sterilisation operations, external stability and price control even as the case for higher rates strengthens.

These developments bring into sharper focus the arguments laid out earlier this year. In an August note titled “Why the RBI Can’t Afford Cheap Money,” the possibility was flagged that the central bank would be compelled to raise the policy repo rate from its unchanged 5.25% toward 6.5% once retail inflation crossed 5%, consistent with the RBI’s own projections through the third quarter of 2026-27 and into the first quarter of 2027-28. Incoming data now suggest inflation is likely to overshoot those projections. Should crude remain elevated in the $90-110 per barrel range, the pass-through from producer costs to final output prices is expected to accelerate. At the prevailing 5.25% repo rate, this configuration implies a negative real policy rate—the very “cheap money” condition previously identified as unsustainable.

Need to Move, Now
The case for a rate increase rests on three interconnected considerations.

First, a real interest rate of at least 1% is the minimum consistent with price stability and financial discipline in an emerging economy, pointing to a nominal repo rate nearer 6.5%.

Second, prolonged negative or near-zero real rates encourage leveraged consumption, erode savings and shrink the policy space available should inflation become more generalised.

Third, India’s recovery remains uneven and K-shaped, marked by weak real rural wages, selective urban and durables spending, and rising household leverage rather than broad-based, income-supported demand. Under such conditions, delaying adjustment risks a larger and more disruptive correction later.

Taken together, the August inflation prints and the broader global rates environment leave the RBI’s current preference for holding the repo rate at 5.25% for as long as possible looking increasingly out of step with the data. CPI is approaching 5%, wholesale inflation remains stubbornly high, and the trajectory points toward 6% in the coming months. These developments create growing discomfort with negative real rates. A shift toward a meaningfully positive real policy rate, with the repo nearer 6.5%, appears more consistent with the evolving inflation and growth landscape than continued accommodation. The early-October meeting of the Monetary Policy Committee will be closely watched for the first concrete signs of that pivot.