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Indian EconomyPrelims: HighMains: HighInterview: High12 min readUpdated 2026-05-25

Inflation

Inflation · types · CPI vs WPI · core inflation · stagflation

Story hook

It is October 1973. Egypt and Syria have attacked Israel. OPEC, furious that Western nations resupplied Israeli forces, declares an oil embargo. The price of a barrel of crude rises from $3 to $12 in six months — a 300% jump. India, which imports almost all its oil, sees its wholesale price index race past 30% in 1974. Bread, kerosene, bus fares, school fees — everything climbs together. The middle-class household that budgeted Rs.300 a month in 1972 needs Rs.500 by 1975 for the same basket of goods. Savings melt. Loans become impossible to repay. Mrs Indira Gandhi's government, already shaky from the Emergency, faces strikes by railway workers, students, and the police itself.

Fast-forward to October 2022. Russia has invaded Ukraine. Wheat prices triple in two months. Crude oil hits $130 a barrel. India's retail inflation crosses 7.79% in April — well above the RBI's 4 ± 2% target band. The Reserve Bank, which had been cutting rates all through Covid to keep the economy alive, now reverses course. Over the next 11 months, the repo rate climbs from 4.00% to 6.50%. EMIs jump. Equity markets correct. The RBI Governor's quarterly explanation to Parliament — required when inflation breaches the band for three consecutive quarters — is delivered for the first time since the inflation targeting framework began in 2016.

The two episodes — 1974 and 2022 — illustrate the same underlying mechanic. Inflation is a sustained rise in the general price level over time. Identical inputs, half a century apart, both triggered by external shocks, both reshaping politics, both forcing the central bank into action. UPSC examiners return to inflation year after year because it bridges every discipline of the GS-III economy paper: monetary policy, fiscal policy, agriculture (food inflation), industry (cost push), poverty (welfare implications), external sector (terms of trade).

Why this matters for UPSC

Inflation is the single concept that links monetary policy (RBI, MPC, repo rate), fiscal policy (subsidies, food procurement, fertiliser), agriculture (food inflation, MSP), industry (producer prices, capacity utilisation), welfare (real income, poverty line), financial markets (real interest rates, bond yields), and external sector (exchange rate, terms of trade).

For UPSC, you need to be able to (a) define inflation precisely, (b) distinguish the major measurement indices (CPI variants, WPI, GDP deflator), (c) classify by speed and cause, (d) explain transmission to the wider economy, (e) outline policy responses, and (f) discuss inflation targeting under the Monetary Policy Framework Agreement of 2015. This file does all six in the order an examiner would expect.

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  • Start here (zero knowledge)
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  • Common traps & misconceptions
  • 5-minute revision card
  • Related topics

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