In 2022, India's CPI crossed 7%. The Nifty had a choppy year. RBI hiked rates aggressively. IT stocks | which had soared in the 2020-21 bull run | corrected sharply as higher discount rates crushed their valuations. Meanwhile, energy and commodity stocks outperformed. This is the inflation playbook in action. Understanding it before it happens is worth far more than reacting after.
- Food & beverages 46%
- Housing 22%
- Fuel & light 16%
- Clothing 10%
- Misc 6%
- Manufactured 64%
- Primary articles 23%
- Fuel & power 13%
Three types of inflation you need to know
CPI vs WPI | the measurement battle
CPI (Consumer Price Index) | measures price changes from the household's perspective. India's CPI basket has approximately 299 items, weighted by household expenditure surveys. Food and beverages have the highest weight (~45%). CPI is the RBI's official inflation target measure. Published monthly by MoSPI.
WPI (Wholesale Price Index) | measures price changes at the factory/wholesale level. More volatile than CPI because it's more exposed to commodity price swings. WPI covers ~697 items with manufacturing products having the highest weight (~65%). When WPI is very high and CPI is moderate, it means manufacturers are absorbing cost increases | eventually margins suffer or CPI rises.
MoSPI | Consumer Price Index data and methodologyRBI's 4% inflation target | the framework that changed everything
In 2016, the Government and RBI formalised a Flexible Inflation Targeting (FIT) framework. The target: 4% CPI inflation, with a tolerance band of ±2% (so 2 to 6%). If CPI stays outside the 2 to 6% band for three consecutive quarters, RBI must write an explanatory letter to the government.
This framework fundamentally changed how monetary policy works in India. Before FIT, RBI balanced multiple objectives | inflation, growth, financial stability, exchange rate. After FIT, the primary mandate is price stability. This means every rate decision is now anchored to where CPI is relative to 4%.
The practical investor implication: When CPI is above 6%, RBI is under pressure to hike and will do so even if it slows growth. When CPI is below 4%, RBI has space to cut to support growth. The 4-6% zone is where RBI has the most flexibility | here, the growth vs inflation tradeoff is most contested. In this zone, watch the core inflation trend to predict RBI's next move.
Inflation regimes and equity sector rotation
| Inflation environment | Sectors that typically outperform | Sectors that typically underperform |
|---|---|---|
| Rising inflation (CPI 6%+, climbing) | Energy, metals, commodities, agri-input companies, real assets | IT (high P/E compressed by rising discount rate), consumer discretionary (demand hurt) |
| High but stable inflation (5-6%) | FMCG with pricing power, banks (NIMs hold), energy | Auto (EMI costs high), real estate (rate-sensitive) |
| Falling inflation (4-5%, declining) | Banks (rate cut expectations), real estate, auto, capital goods | Commodity stocks (prices falling) |
| Low stable inflation (2-4%) | Broad market bull case | financials, IT, consumption, capex | Pure commodity plays (input cost advantage disappears) |
The food inflation problem in India
India's CPI basket has ~45% weight in food and beverages. This means one bad monsoon season can push CPI from 4% to 7% in a few months | entirely through food prices | even if the rest of the economy is healthy. This creates a peculiar situation: RBI is supposed to target inflation, but it can't control food prices through rate hikes.
Rate hikes work by reducing demand for credit and slowing consumption. They don't make it rain more or fix supply chains. Hiking rates to control food inflation is like using a sledgehammer to fix a watch. RBI knows this | which is why it focuses heavily on core inflation when making long-run policy decisions, even if headline CPI is the official target.
RupeeCase's macro regime model tracks a rolling 3-month CPI trend. When CPI is above 5.5% and rising, the model flags a "high inflation regime" | in this regime, factor strategies historically show lower momentum and higher quality factor returns. The model shifts portfolio composition accordingly. When CPI is below 4.5% and falling, a "benign inflation regime" is flagged | momentum and growth strategies have historically performed better. Available at invest.rupeecase.com.
Glossary
- CPI
- Consumer Price Index | measures price changes from the household's perspective. India targets 4% CPI ±2%. Food and beverages ~45% of the basket. Published monthly by MoSPI.
- WPI
- Wholesale Price Index | measures prices at factory/wholesale level. More volatile than CPI. A rising WPI-CPI spread signals manufacturer margin pressure.
- Core inflation
- CPI excluding food and fuel. Reflects structural, sticky price trends. RBI watches core inflation for long-run policy signals as food/fuel shocks are transitory.
- FIT framework
- Flexible Inflation Targeting | India's monetary policy framework since 2016. RBI must keep CPI at 4% (±2%). Breach for 3 quarters triggers a formal explanation to government.
- Cost-push inflation
- Inflation caused by rising input costs (crude oil, commodities) passed through the supply chain. Cannot be easily controlled by rate hikes alone.
Sources & further reading
Quick check, Module 7.3
Real Return Calculator
Fisher equation: real return is the actual purchasing power gain after inflation eats into nominal return.