The Ministry of Statistics & Programme Implementation (MoSPI) released additional explanatory information regarding the Q1 FY2026-27 GDP estimates following the publication of updated GDP series with base year 2022-23 on August 31, 2026. The document addresses six specific methodological questions regarding the new GDP compilation approach.

Methodology Clarifications

The Ministry explains that the negative implicit GVA deflator of -1.5% for manufacturing in Q1 FY27 does not indicate falling manufacturing prices but results from the double-deflation methodology where input prices increased faster than output prices. Nominal manufacturing GVA grew 7.7% while real GVA grew 9.2%, creating the negative deflator. This phenomenon is documented in OECD research during global energy and raw material shocks. In contrast, agriculture recorded a positive 3.9% implicit deflator as its GVA is compiled differently, using output Producer Price Index inflation of approximately 5%.

Series Revisions Explanation

The document addresses concerns about Q1 FY26 current price GDP being revised down from ₹86.05 lakh crore to ₹80.00 lakh crore, clarifying this results from successive methodological revisions rather than artificial adjustment. The revision process involved: initial release under 2011-12 base (₹86.05L Cr), introduction of 2022-23 base series in February 2026 (₹80.32L Cr), provisional estimate update in June 2026 (₹80.44L Cr), and final incorporation of new IIP and PPI series (₹80.00L Cr). Growth rates should be compared within the same series framework.

Inflation Measure Divergence

The Ministry reconciles the 2.5% implied GDP deflator with higher CPI (3.9%) and WPI (9%) by explaining these indices measure different economic aspects with varying coverage and weights. The GDP deflator covers the entire economy including services with low inflation, while WPI focuses on commodities and CPI on household consumption. The GDP deflator is derived from over 300 individual price deflators at item/group level.

Sector-Specific Analysis

For the mining sector, the significant gap between nominal GVA growth (22.3%) and real GVA growth (-2.4%) is attributed to strong price increases despite weak production. IIP for mining showed -3.8% in April, -1.4% in May, and 1.6% in June 2026. Meanwhile, PPI data showed dramatic price increases: crude petroleum and natural gas prices rose 69.5% in April, 72.2% in May, and 33.7% in June, while metal ore mining inflation was 27.6%, 25.2%, and 23.5% respectively during the same months.

Statistical Considerations

The document notes that discrepancies between production and expenditure-side GDP estimates are statistical balancing items that may change with subsequent revisions as more data becomes available. The Ministry indicates that discrepancies typically become insignificant or zero in final estimates, as seen in FY2022-23 and FY2023-24.