Why food is the whole story of Indian inflation

In India, when the price of onions spikes, governments fall. That is not hyperbole: onion prices have toppled state governments, and every politician knows that food inflation is election thermite. So when a sabziwala in Azadpur mandi one morning finds his wholesale onion price has doubled, he is not just staring at his own balance sheet; he is staring at the next election result. A few kilometres away, a delivery rider for Swiggy is earning the same per trip as last year, but now his kitchen budget is being shredded. Food is the inflation that India actually feels.

In a rich country, a household might spend 10–15% of its budget on food. In India, for decades, it has been nearly half. That is Engel's law in action: as people get richer, they spend a smaller share of their income on eating, even if the absolute amount rises. Because most Indian families are not rich, food still dominates the consumer price index.

In February 2026, India launched a new CPI series with base 2024, built on the Household Consumption Expenditure Survey of 2023–24. The biggest headline: the weight of food and beverages fell from 45.86% (the old 2012 basket) to 36.75%. This is Engel's law unfolding in real time. Indians now spend more on services, housing, and data plans. But 36.75% is still enormous. Compare that to housing, water, electricity and fuels at 17.66%, transport and communication at 12.41%, and health at 6.1%. Food alone outweighs any other group by a mile. The new basket has 358 items, up from 299, and now includes e-commerce prices, OTT subscriptions, and telecom data plans, reflecting how India's shopping habits have changed. Yet for most families, the roti remains the centre of the budget.

In January 2026, the first reading under the new base put headline inflation at 2.75%. Under the older 2012 series, which gives a longer lens, we can see the volatility that the calm headline hides.

Because food has such a big weight, its volatility can yank the overall CPI around. In December 2025 (old series), combined CPI inflation was 1.3%. Food and beverages contributed -0.85 percentage points to that figure. Remove food, and inflation excluding food that month was 4.3%. Core inflation (which also strips out fuel) was 4.6%. The cheap dal and tomato were masking a stiffer price environment in health, education, and services.

Food inflation is never quiet for long. In the years since 2012, the food index has gyrated between deep deflation and high inflation, lurching with every monsoon. No other component has that power. Housing costs move slowly; transport is buffeted by global oil; education and health creep up. Food alone can plunge and spike inside a single season.

Under the 2012-based series, we can track exactly which foods are swinging. In December 2025:

Source: MoSPI, CPI 2012 series, December 2025

Tomato, notoriously, can swing violently. The tomato index stood at 259.6 in December 2025 (2012=100), meaning prices had more than doubled since the base period. The onion index moved from 173.4 in January 2014 to 201.3 in December 2025, with breathtaking drops and leaps in between. The vegetable index as a whole climbed from 124.6 to 210.6 over the same window. Food inflation in India is not a gentle upward drift; it is a series of explosions.

A Hindi phrase captures it: baarish nahi hui toh sab mehenga ho jaayega (if the rains don't come, everything will become expensive). India's vegetables, pulses, and oilseeds are overwhelmingly grown on rain-fed land. When the monsoon fails, output collapses. For perishables like tomatoes and onions, there is little cold storage that works at scale. A glut in one season rots; a shortage the next sends prices through the roof.

The other driver is that Indians don't stop eating when prices rise. The demand for food is what economists call inelastic: you still need your daily roti, rice, dal, and onion. So a small supply shortfall creates a large price increase. This is pure supply-side dynamics. Money printing or loose credit might push up the price of gold or housing, but they do not cause a drought in Maharashtra. The wholesale price index paints an even grimmer picture: in April 2026, primary articles inflation was 9.2%, driven heavily by food items.

Pulses are a staple, but domestic production often falls short, forcing imports. When global prices rise or the monsoon fails, arhar dal prices can surge. Mustard oil, a kitchen staple across north and east India, saw inflation of 8.2% in December 2025 (old series) because of a poor mustard crop and high international vegetable oil prices.

When inflation rises, the Reserve Bank of India's textbook tool is to raise the repo rate, the rate at which it lends to banks. Higher rates make borrowing costlier, cool demand, and, in theory, pull down prices. But this works best when inflation is demand-pull: too much money chasing too few goods. Food inflation in India is overwhelmingly supply-push: not enough goods, period.

Raising the repo rate does not make onions grow. It does not mend a broken cold chain or repair a monsoon. What it does do is make the EMI on a home loan more expensive, slow down factory investment, and possibly threaten jobs. The RBI knows this. The dilemma is acute when food inflation is high and core inflation is also sticky. In December 2025, core inflation was 4.6%, above the midpoint of the RBI's comfort zone, even as food deflation kept the headline at 1.3%. If the RBI had raised rates to fight the core, it would have punished an already weakening economy while food prices were actually falling. If it cut rates to spur growth, it risked stoking future demand-pull when food inevitably turned up again.

The repo rate currently stands at 5.25%. In recent years, when tomato and cereal prices have spiked, the RBI has sometimes raised rates, only to find that food prices remained stubbornly high. By late 2024, the rate was cut as growth weakened, even as food continued its dance. The minutes of the Monetary Policy Committee often note that much of the inflation is supply-side. No central banker will publicly say interest rates are useless against food prices, but the minutes reveal a constant anxiety.

Engel's law again: the poorer a household, the larger the share it spends on food. For families at the bottom of the income ladder, food can consume half the monthly budget. So when food prices surge, those households suffer a much larger blow than a salaried professional in Gurgaon, for whom food might be only a fraction. The cruelty is baked in.

Rural areas are especially vulnerable. Many rural households are net buyers of food: they may grow some wheat or paddy, but they buy vegetables, pulses, oil, and spices from the market. In December 2025, rural food inflation was -2.3% and urban -1.1% under the old series, but in a high-inflation month the rural number can be higher because rural diets rely more on cereals and pulses, which can spike sharply. The divergence in overall inflation tells the same story: rural headline inflation was 0.8% compared to 2% in urban areas, a gap largely driven by food's heavier weight in rural spending.

The gender dimension is also stark. When food prices surge, women typically bear the burden of managing the household budget. They are the ones who reduce their own meals, skip the chai, or walk farther to find a cheaper vendor. The CPI basket does not measure that quiet suffering.

Governments treat food inflation not as a macroeconomic statistic but as an election emergency. The price of onion has toppled state governments, in Delhi and Madhya Pradesh in the 1990s and early 2000s, and has lost Lok Sabha seats for incumbents. That is why when onion prices cross a threshold, you see frantic policy: export bans, stock limits on traders, raids on hoarders, and import duties slashed to zero overnight.

The toolkit is crude but politically essential. The Food Corporation of India maintains buffer stocks of wheat and rice, procured at minimum support prices (MSP), which can be released to calm cereal inflation. For pulses and oilseeds, the government has a price stabilisation fund and sometimes imports directly. For onions, the standard playbook is to ban exports, impose stockholding limits, and sell from Nafed buffers at subsidised rates through Mother Dairy and Safal outlets.

These measures are often criticised by economists as distorting markets and hurting farmers. An export ban can crash farmgate prices even as retail prices remain elevated because middlemen hoard. But no political party wants to be the one that let onion prices soar and then faced angry voters at the next rally. The result is a constant cycle of knee-jerk intervention that creates uncertainty for farmers and traders alike.

Food inflation is the lived cost-of-living index for most Indians. The headline CPI can look serene, 2.75% in January 2026 under the new base, while a family in Dharavi watches the price of their thali see-saw with every vegetable spike. The official number smooths out extremes, weights items by average consumption, and assumes everyone buys the same things. In reality, your personal inflation depends on what you eat, where you shop, and whether you are rich or poor.

The gap between headline inflation and food inflation also reveals the true stress in the economy. When food deflation masks rising health and education costs, as it did in December 2025, the RBI may look at the low headline and think it has room to cut rates, while a household paying higher school fees and doctor's bills feels no relief. When food spikes, the RBI may feel compelled to hike, even though the hike will not cool the sabzi mandi. The result is a monetary policy that is constantly wrong-footed.

For the ordinary Indian, the lesson is simple: watch food. The headline number is an average; the price of your thali is the real number. And for policymakers, the lesson is harder: until India builds real cold chains, irrigation that does not depend on the monsoon, and futures markets that genuinely hedge risk, food inflation will remain the ungovernable heart of India's economy.