Model Answer

Price indices such as the Wholesale Price Index (WPI) serve as important indicators of inflation and economic trends. Recognising structural changes in the economy, the Government of India has revised the WPI base year from 2011–12 to 2022–23, while broadening its coverage to include emerging sectors like renewable energy.

Significance of Revising the Base Year

1. Reflects Current Economic Structure

The Indian economy has undergone significant transformation with growth in renewable energy, digital manufacturing, logistics and new industrial sectors. A revised base year captures these changes more accurately.

2. Updates Basket and Weights

Obsolete commodities are removed while new products are added. Weights are reassigned according to their current contribution to production and trade, improving representativeness.

3. Improves Statistical Accuracy

Adoption of improved methodologies and better data collection practices enhances the reliability of inflation estimates. How an Updated WPI Improves Policymaking and Inflation Measurement

1. Better Inflation Assessment

Captures contemporary wholesale price movements, enabling accurate measurement of producer-side inflation.

2. Informed Monetary and Fiscal Decisions

Reliable inflation data helps policymakers design targeted interventions related to interest rates, taxation, subsidies and procurement policies.

3. Sector-Specific Policy Formulation

Inclusion of renewable energy and emerging industries provides insights into price trends in sunrise sectors, supporting industrial and energy-transition policies.

4. Improved Economic Planning

More accurate price indices contribute to better forecasting, budgeting and national income estimation.

5. Enhanced International Comparability

Aligns India’s statistical framework with global best practices, strengthening investor confidence and policy credibility. Conclusion

The revision of the WPI base year to 2022–23 is a timely reform that reflects the changing structure of the Indian economy. By improving the accuracy, relevance and coverage of price measurement, it strengthens inflation monitoring and enables more evidence-based economic policymaking, supporting India's transition towards a modern and resilient economy.