India’s retail inflation reading for December 2025 marks the final chapter of the Consumer Price Index (CPI) series with a 2012 base year. Before the index shifts to a new base year and revised weights, this last data point has underlined a deeper concern: when statistical inflation looks benign, but households feel the squeeze, policy signals begin to misfire.
What the December 2025 Inflation Number Says
Retail inflation for December 2025 stood at 1.33%. While technically a three-month high, it was also the third lowest reading since the current CPI series began. Over the April–December 2025 period, average inflation was just 1.7%, a sharp decline from 4.9% during the same period in 2024. On paper, this suggests a dramatic easing of price pressures.
Why the Numbers Don’t Feel Right
Despite low headline inflation, consumption behaviour tells a different story. The government’s first advance estimates for GDP growth indicate that private consumption growth in 2025–26 is expected to be slower than last year. If inflation had genuinely cooled to the extent suggested by CPI data, discretionary spending should have picked up. Instead, households appear cautious, signalling that their real purchasing power is under strain.
Household Perception vs Official Inflation
This divergence is starkly visible in the inflation expectations survey conducted by the “”. In its December round, households perceived current inflation at 6.6%, nearly five times the official CPI figure. They also expected inflation to rise further—to 7.6% over the next three months and to around 8% over the next year. The perception is not just of rising prices, but of accelerating price increases, a reality that headline CPI has failed to capture.
The Limits of a Single National Inflation Figure
At its core, inflation measurement tries to compress immense diversity into one number. India’s national CPI aggregates price movements across vastly different geographies—from urban Kashmir to rural Kerala, across income classes, consumption baskets, and local supply conditions. Some loss of nuance is inevitable in such aggregation, particularly in a large and heterogeneous economy.
How an Outdated CPI Makes the Problem Worse
What amplifies this structural limitation is the outdated nature of the CPI itself. The weights assigned to food, fuel, housing, services, and other components are still based on consumption patterns from 2012. Over the past decade, household spending has changed significantly—shaped by rising service consumption, digital spending, and the growing role of central and State subsidies that alter out-of-pocket expenses. An index anchored to old consumption habits inevitably misrepresents current inflation experiences.
Why the CPI Revision Matters
This is why the forthcoming CPI revision is critical. On February 12, the government will release January inflation data using a new CPI series with a 2024 base year. The revised index will incorporate updated weights derived from the Household Consumption Expenditure Survey 2023–24. This change is expected to better reflect present-day consumption realities and narrow the gap between official inflation and household experience.
Implications for Policy and Credibility
Inflation data are not just statistical artefacts; they shape monetary policy, fiscal decisions, and public trust. When official numbers consistently understate lived inflation, policymakers risk misjudging demand conditions, while households lose confidence in economic signals. An updated CPI is therefore not a technical adjustment but a prerequisite for credible macroeconomic management.
What to Note for Prelims?
- December 2025: Last CPI reading with 2012 base year
- Retail inflation (Dec 2025): 1.33%
- Average inflation (Apr–Dec 2025): 1.7%
- New CPI base year: 2024
- New weights based on Household Consumption Expenditure Survey 2023–24
What to Note for Mains?
- Mismatch between headline inflation and household inflation perception
- Limitations of national inflation indices in a diverse economy
- Impact of outdated consumption weights on policy accuracy
- Importance of CPI revision for monetary policy credibility
The December 2025 inflation number may close one statistical series, but it opens a larger conversation about how India measures economic reality. Updating the CPI is not merely overdue—it is essential for restoring alignment between data, policy, and lived experience.
Last Modified: January 16, 2026