What Exactly Is the ISP?
Think of the Index of Services Production (ISP) as the new sibling to the long-standing Index of Industrial Production (IIP). While the IIP tracks monthly output in the manufacturing and industrial sectors, the ISP is designed to do the same for the services
economy. For years, the services sector, which contributes over half of India's Gross Value Added (GVA), lacked a direct, high-frequency measure of its real output. Policymakers and investors had to rely on indirect signals like GST collections or survey-based indicators. The ISP, compiled by the Ministry of Statistics and Programme Implementation (MoSPI), aims to fill this critical data gap by measuring short-term changes in the real output of the formal services sector.
Why This New Index Matters
The introduction of the ISP is a significant step in modernising India’s statistical system. With services being the dominant driver of economic growth, a dedicated monthly index provides a much clearer and more timely picture of economic momentum. Before the ISP, the most current official data was quarterly GDP estimates. The new index will offer a monthly pulse, helping policymakers, businesses, and investors make more informed, evidence-based decisions. It complements the IIP, allowing for a more complete and timely assessment of overall economic activity.
How It Differs from PMI
You might be familiar with the Services Purchasing Managers' Index (PMI), another monthly indicator. However, the ISP and PMI are fundamentally different. The PMI is a diffusion index based on surveys of senior executives about their business activity (e.g., new orders, employment). It reflects sentiment and the direction of change—whether business is expanding or contracting. In contrast, the ISP is an output-based index that uses hard data to measure the actual volume of services produced. It will draw primarily from GST data on outward supplies, along with administrative records from sectors like railways and aviation, to calculate real output after adjusting for inflation.
What to Look for in the First Release
The initial release on July 14 will be a trial or experimental series for the month of April 2026, with a base year of 2024-25. This trial phase is crucial for ensuring the methodology is stable before regular publication begins. The index will cover a wide range of formal service sectors, including trade, transport, telecommunications, banking, insurance, real estate, and professional services. However, some key areas like health and education will be excluded initially, to be added later as more data becomes available. Also, the ISP focuses on the formal sector, so the vast informal services economy will not be directly captured.
Verify Before You Decide: A Word of Caution
While the ISP is a powerful new tool, it's wise to approach the first few releases with caution. New economic indicators often go through a period of adjustment and revision. The initial data will be on a trial basis, allowing MoSPI to refine the process. Expect some volatility as the data collection and deflation methods are fine-tuned. For instance, the index relies on proxy price deflators like the CPI (Non-Food) in the absence of comprehensive Service Producer Price Indices, which can be a point of debate among economists. It is more important to look for a consistent trend over several months rather than reacting to a single month's figure. This first release is a starting point, not a definitive verdict on the economy's health.
