Inflation - sustained increase in general price level - is measured in India primarily through CPI-Combined (CPI-C, base 2012) for monetary policy and WPI (base 2011-12) for producer prices. Types: demand-pull (excess demand), cost-push (supply shocks), built-in (wage-price spiral), and structural (bottlenecks). The RBI's inflation targeting framework (4% +/-2%) uses CPI-C. Core inflation (excl food/fuel) guides policy; headline volatility is driven by food (46% weight in CPI-C).[TOPIC CLASSIFICATION]
Topic type: Economy - Inflation
PYQ frequency: Very High
Exam stage: Prelims + Mains
Primary GS paper: GS 3
[EXAMINER REASONING]
Trap: Confusing CPI-C with WPI or CPI-IW. CPI-C (base 2012, 46% food) is RBI's target index; WPI (base 2011-12, 64% manufactured) is for GDP deflator; CPI-IW (base 2016) is for DA/wage indexation. Many aspirants use them interchangeably.
Most confused: Core vs headline inflation. Core excludes food and fuel (volatile); headline includes all. RBI targets headline (CPI-C) but watches core for policy. The 2022-23 spike (headline 7.8%, core ~6%) showed supply-driven inflation that rate hikes couldn't fully fix.
Key anchor: The inflation targeting framework (2016, RBI Act amendment): 4% CPI-C target, +/-2% tolerance band (2-6%). Failure clause: if outside band for 3 consecutive quarters, RBI writes to government. MPC (6 members: 3 RBI, 3 external) sets repo rate.
Current affairs hook: FY24 CPI-C 5.4% (within band), food inflation 7.5%, core ~3.5%. Repo rate 6.5% (unchanged since Feb 2023). MPC stance: 'withdrawal of accommodation'. Food volatility: tomato (2023), onion (2024), cereals (export bans). WPI deflation FY24 (-0.5%). RBI's 'inflation targeting review' due 2026.
Mains hinge: Evaluate: Can monetary policy fix supply-driven food inflation? The 2022-23 experience (repo hikes 250 bps, food inflation persistent) vs core moderation. The trade-off between growth and inflation, and the case for targeting core or widening the band, is the Mains frame.
Core Concept
Inflation measurement in India: CPI-C (Combined, rural+urban, base 2012) is the RBI's target index for monetary policy. Weights: Food & Beverages 45.86%, Fuel & Light 6.84%, Clothing 6.53%, Housing 10.07%, Miscellaneous 28.7%. WPI (Wholesale Price Index, base 2011-12) measures producer prices: Primary Articles 22.6%, Fuel & Power 13.1%, Manufactured Products 64.2%. CPI-IW (Industrial Workers, base 2016) for DA/wages.
exam_relevance: Very High PYQ frequency, tested in GS3 Prelims and Mains
UPSC Question Themes (Illustrative)
Treat these as original practice prompts unless a linked official UPSC paper is provided; they are not represented as verbatim PYQs.
| Type | Stage | What was tested |
|------|-------|-----------------|
| Practice | Prelims | The RBI's inflation target is: 4% CPI-C with +/-2% tolerance band |
| Practice | Prelims | CPI-C base year is: 2012 |
| Practice | Mains | The inflation targeting framework is inadequate for managing supply-driven inflation. Critically evaluate. |
| Practice | Prelims | Which index is used for Dearness Allowance revision? CPI-IW |
| Practice | Prelims | The Monetary Policy Committee has: 6 members (3 RBI, 3 external) |
| Practice | Mains | Explain the monetary policy transmission mechanism. Why is it weak in India? |
| Practice | Prelims | WPI base year is: 2011-12 |
| Practice | Prelims | The inflation targeting framework was adopted in: 2016 |
| Practice | Mains | Discuss the causes of food inflation in India and policy responses |
| Practice | Prelims | The Urjit Patel Committee recommended: Inflation targeting framework |
Statement Elimination Guide
Correct: CPI-C (base 2012) is the RBI's target index for inflation targeting.
False: WPI is used for monetary policy inflation targeting. (False. CPI-C is used; WPI is for GDP deflator.)
Trap: Core inflation excludes only food. (False. Core excludes both food AND fuel.)
Correct: The MPC has 6 members with the Governor having a casting vote in case of tie.
False: The RBI Governor appoints external MPC members. (False. External members appointed by Government.)
Trap: If inflation crosses 6%, the RBI Governor must resign. (False. No resignation clause; RBI writes to Govt after 3 quarters.)