Gross Value Added

GVA measures production from the supply side while GDP measures it from the demand side, and the difference between them is net product taxes. Because GVA excludes the tax component, it is the cleaner measure of what the economy actually produced — a rise in GST rates lifts GDP without any additional output. India publishes both, and GVA is reported by sector, which makes it the more useful figure for understanding which parts of the economy are growing. When the two diverge noticeably, the explanation is usually a change in taxes or subsidies rather than in production.