Distinguish between GDP and GVA as measures of economic activity. Why do their growth rates diverge in a given quarter?

India's national accounts, compiled by MoSPI on the new base year 2022-23 [2], report two headline aggregates. In Q1 (April–June) of 2026-27, real GVA grew 8.2% while real GDP grew 7.8% [1] — a gap that reflects not statistical error but a definitional difference between the two measures.

How the two differ

• Vantage point: GVA measures output from the supply/production side — the value added by agriculture, industry and services. GDP measures the same economy from the demand/expenditure side (consumption, investment, government spending, net exports).
• Prices used: GVA is valued at basic prices (what the producer receives); GDP is at market prices (what the buyer pays).
• The bridge: GDP = GVA + product taxes − product subsidies. GVA therefore shows sectoral health; GDP shows the size of the economy as consumers face it.
• Analytical use: GVA is preferred for reading sectoral drivers — in Q1 2026-27, secondary sector GVA rose 8.6% and 'Agriculture and Allied' 3.6% [1]; GDP is preferred for fiscal ratios, since the Budget's deficit targets are pegged to nominal GDP, which grew 10.3% in the same quarter [1].

Why growth rates diverge

• The wedge is net product taxes, which follow their own trajectory. When net indirect tax collections grow slower than value added — due to GST rate rationalisation, excise relief, or a surge in food, fertiliser and fuel subsidies — GDP growth falls below GVA growth, as in Q1 2026-27 [1].
• Conversely, buoyant indirect tax collections or subsidy withdrawal push GDP growth above GVA growth.
• Deflator differences add to the gap: real estimates use distinct price deflators, and the new series' adoption of double deflation sharpens this [2].
• Quarterly figures are provisional and revised in later releases [1].

Read together, the two measures are complementary rather than competing: GVA diagnoses where growth originates, GDP captures its market-price magnitude. For sound policy — whether the RBI's rate calibration or the Economic Survey's growth assessment [3] — reading both, alongside the tax-subsidy wedge between them, is essential to avoid misjudging the economy's underlying momentum.