India is bracing for a significant surge in retail inflation, with economists forecasting a rate close to 5% for September. This acceleration, driven primarily by escalating food prices and a spike in global crude oil costs, is expected to push consumer price index (CPI)-based inflation to a 20-month high, breaching the Reserve Bank of India's (RBI) comfort level of 4% for the third consecutive month.
Food Prices Drive Household Budget Strain
The latest data indicates that food items are a major contributor to the inflationary pressure. The Bank of Baroda Essential Commodities Index (BoB ECI) reported a 4.8% year-on-year increase in August 2026, with 15 out of 20 monitored items seeing an uptick in their inflation rates. Notably, sugar registered the sharpest increase, while onion prices also climbed. Components of pulses like tur and urad, along with edible oils such as vanaspati, soya, and sunflower oil, experienced modest rises.
Crisil’s Roti Rice Plate report highlights the impact on daily expenses, noting that the cost of home-cooked vegetarian and non-vegetarian thalis rose by 1% and 5% year-on-year, respectively, in August. Elevated prices for onions, vegetable oil, rice, and liquefied petroleum gas (LPG) kept meal costs high, despite some relief from declining potato and tomato prices.
Onion Prices to Remain Firm
Pushan Sharma, Director at Crisil Intelligence, anticipates that onion prices will remain elevated over the next two to three months due to tight rabi supplies and delayed kharif harvests. While potato prices are expected to stay stable, tomato prices are projected to remain benign.
Global Crude Oil Adds Further Pressure
Beyond food, the intensifying conflict in West Asia has pushed Brent crude oil prices above $100 per barrel, raising significant concerns for India's economy. Higher crude prices translate to increased freight and landed costs for imports, alongside elevated packaging costs due to higher polymer and resin prices.
The average cost of India's crude oil basket rose sharply to $102.11 per barrel in September, up from $90.19 in August. Rajeev Sharan, Head of Research at Brickwork Ratings, warns that this will squeeze profit margins in oil-sensitive sectors, including aviation, paints, tyres, chemicals, logistics, and parts of the fast-moving consumer goods (FMCG) industry. For the broader Indian economy, costlier crude means higher import bills, a wider trade deficit, and a potentially weaker rupee, significantly limiting the RBI's scope for interest rate cuts in its upcoming review.