Falling inflation is not falling prices.
The most misread number in the economy, taken apart once and properly: what inflation is, what it is not, and how to read any print without being fooled.
The charts on this page draw the consumer price index on its 2012 base, the series that ran to December 2025. From January 2026 the NSO publishes the index on a new base, 2024 = 100. The idea on this page works the same on either ruler; the latest figures are in the Consumer prices guide.
The word, defined
First principlesEvery month, the government's statisticians check the price of roughly three hundred things an ordinary household buys: rice, milk, bus fares, haircuts, school fees. They compare the total with the same month a year earlier, and the percentage change they report is inflation. When you hear "inflation is 4 per cent", it means the basket costs 4 per cent more than it did twelve months ago. Nothing more, and nothing less.
Two ideas are doing all the work in that sentence, and they are worth separating, because most confusion about inflation is really confusion between them: what things cost, and how fast that cost is rising.
Notice what the definition does not say. It does not say things are expensive. The basket could be cheap and getting costlier quickly, or expensive and getting costlier slowly. Inflation is a speed, not a height. The height has its own name.
A car easing off the accelerator is still moving forward. Inflation falling is still prices rising; only reverse gear, a negative print, means prices genuinely fell, and reverse gear is rare. Three words cover every configuration the news will ever report. They are not interchangeable.
| Term | Plain meaning | The price level | What you feel |
|---|---|---|---|
| Inflationthe rate is positive | Prices rising, quickly or slowly | Rising | Life getting costlier |
| Disinflationthe rate is falling, still positive | Prices rising more slowly than before | Still rising | The pain is slowing, not reversing |
| Deflationthe rate is negative | Prices actually falling | Falling | Genuinely cheaper; rare, and not always good news |
Two drawings of the same decade
Index level, y/y %The two ideas draw two very different pictures of the same ten years. Below is the decade drawn twice: once as the level, what the basket cost month by month, and once as the rate, the form in which inflation reaches the news.
The price level climbs while the inflation rate falls: both true at once
The top line is what things cost; the bottom line is how fast that cost is rising. The bottom is only the top measured against twelve months back, so every wiggle below has a parent above. When the bottom line falls, the top line merely flattens. A dip needs more: only a negative reading below turns the top line down, and that is deflation.
The level does dip month to month; it did thirty-one times in this decade, mostly in winter. But a dip is a pause, not a return. Compared with a year earlier, the basket has cost more in every single month of this series. The highest reading on the top line is the last one.
Through 2025 the rate collapsed, from – in January to – in December, the calmest year-end in the series. And the level? It wobbled through the winter, as it does, then climbed to –, the highest reading the index has ever recorded.
Inflation fell all year. Prices rose all year. Both statements are true at once, and holding them together is the whole lesson of this page.
The arithmetic the headline compresses
A worked example, Dec 2024 → Dec 2025The index is not money, but its ratio is. Divide the December 2025 level by the December 2024 level and you get the print: – over – is 1.013: the 1.3 per cent of the headline. A basket that cost ₹1,000 in December 2024 cost – a year later. The rate can halve while the total climbs, because the rate only ever measures the climb.
And the climb compounds. Each year's print is applied to a level already raised by every print before it, which is why a decade of mostly moderate inflation has made the basket – more expensive since 2016, with no year of relief subtracted anywhere in between.
What falling prices actually look like
Index level, monthlyDeflation is the level line turning down: food did it, briefly
This is a level chart, not a rate chart. It is the same view as the top line of the previous plate, zoomed to three years. Deflation lives here: not the line flattening, not the rate falling, but the line itself turning down. A peak, then a genuine decline. Anything less is disinflation wearing deflation's clothes.
The food index peaked in October 2024 at – and slid to – by December 2025, about – cheaper at the shelf. Vegetables drove the fall, reversing the spike of the autumn before. That is what falling prices look like: food is the only major group that does it with any regularity. Relief at the shop and distress on the farm, in the same figure.
How to misread this concept
- i.
“Inflation fell, so prices fell.”
No. Falling inflation means prices are rising more slowly: disinflation. Only a negative print means falling prices, and negative headline prints are rare enough to count on one hand in a decade.
- ii.
“Low inflation means things are cheap.”
No. Inflation measures change, never level. Two per cent inflation in Zurich and in Patna report the same speed and say nothing about cost. The word for cheap is cheap. Use it instead.
- iii.
“The rate going down means my bill went down.”
Your bill went up by less. The print is a ratio to a year ago. 1.3 per cent of what? Of last year's level, which itself sits on every increase of the decade before it. Inflation compounds; the level carries the full history.
- iv.
“Deflation would be a gift.”
Be careful what you wish for. Falling prices reward waiting: why buy today what will be cheaper next month? Held long enough, that pause stalls wages, hiring and credit. A short food-led dip is relief; a general, lasting fall in prices is an economy holding its breath.