India's retail inflation saw a significant increase in May 2026, largely propelled by escalating fuel costs and a surge in imported inflation. While the headline figure remained below the Reserve Bank of India's (RBI) 4% target, an analysis by SBI Research indicates growing price pressures that could keep inflation elevated in the coming months, dampening prospects for an August rate cut.
CPI Rises on Fuel and Imported Pressures
According to the latest Ecowrap report from SBI Research, the Consumer Price Index (CPI) climbed to 3.93% in May 2026, up from 3.48% in April. This notable rise was predominantly attributed to higher prices for petrol and diesel, coupled with shortages in LPG supplies and a sharp increase in imported inflation.
Imported inflation emerged as a critical concern, escalating to 7.23% in May from 6.34% in April. Its weighted contribution to headline inflation nearly doubled to 2.43%, underscoring the increasing impact of exchange rate fluctuations and global supply chain disruptions on domestic prices. The report specifically noted, "The impact of exchange rate fluctuations and external shocks like supply chain disruptions are now creeping into India's CPI."
Transport and Services See Price Hikes
The ripple effect of elevated fuel prices was particularly evident in transportation expenses. Transport inflation soared by 176 basis points, reaching 1.8% in May from near-zero levels in April, directly reflecting the pass-through of increased petrol and diesel costs to consumers.
Moreover, shortages in cooking gas contributed to higher service sector inflation. Inflation in restaurants and accommodation services jumped to 5.7% in May from 4.2% in April, a rise of 154 basis points. SBI Research linked this increase largely to a slight scarcity of LPG supplies, which pushed up the cost of cooked food items and hospitality services.
Other Contributors and Rural Impact
Beyond fuel, precious metals also played a significant role in May's inflation figures. Silver jewellery was the largest single contributor to headline inflation, adding 56 basis points, followed by gold with a 30 basis point contribution. Petrol accounted for another 14 basis points. Other items contributing to the upward trend included refined oil, mustard oil, fish, prawns, milk, chicken, and goat meat.
SBI Research highlighted that inflationary pressures were more pronounced in rural India, where inflation accelerated to 4.25% in May from 3.73% in April. This contrasts with urban areas, which saw an increase to 3.53% from 3.16%. Transport and restaurant services were key drivers in both regions.
Monsoon Risks and Future Outlook
Adding to future inflation concerns, India experienced 27% below-normal rainfall during the first 11 days of June 2026, with significant deficits in central, eastern, and northern regions. Continued weakness in monsoon progress could delay the sowing of crucial crops such as rice, cotton, soybeans, and pulses, potentially triggering fresh food inflation pressures.
Given the uncertainties surrounding energy prices, geopolitical developments, exchange rates, monsoon distribution, and global supply chain conditions, SBI Research anticipates that inflation will likely peak around October. Consequently, the report does not foresee any room for an RBI rate cut in August.