What is the PMI?

The Purchasing Managers' Index (PMI) is a monthly economic indicator that measures the economic health of the manufacturing and services sectors. It is compiled by S&P Global (formerly IHS Markit) based on surveys of purchasing managers at companies across various industries.

The PMI is calculated based on five key sub-indices, each weighted as follows:

  • New Orders (30%)
  • Output (25%)
  • Employment (20%)
  • Suppliers' Delivery Times (15%)
  • Stocks of Purchases (10%)

How to Read the PMI

The PMI is reported on a scale of 0 to 100:

  • Above 50 → Expansion: The sector is growing compared to the previous month.
  • Equal to 50 → No Change: The sector is neither expanding nor contracting.
  • Below 50 → Contraction: The sector is shrinking compared to the previous month.

A higher reading above 50 indicates faster growth; a reading further below 50 indicates steeper decline.

September 2026 Data: Key Highlights

India's Manufacturing PMI rose to 55.1 in September 2026, up from the previous month's reading, marking a seven-month high. This indicates:

  • Strong growth in new orders, driven by both domestic demand and export orders.
  • Increased production output as firms ramped up capacity.
  • Job creation in the manufacturing sector, though at a measured pace.
  • Continued pressure on input costs due to global commodity prices, though output price inflation remained modest.

This positive reading is consistent with India's broader economic momentum, including strong GST collections and robust manufacturing growth in sectors like electronics, pharmaceuticals, and auto components.

PMI vs. Index of Industrial Production (IIP): Key Differences

A common area of confusion for UPSC aspirants is the distinction between PMI and IIP. Here is a clear comparison:

  • Nature: PMI is a survey-based leading indicator (reflects sentiment/expectations); IIP is a statistical measure of actual industrial output.
  • Frequency: PMI is released monthly, within a few days of month-end; IIP is released with a 6-week lag (e.g., July IIP is released in September).
  • Publisher: PMI is published by S&P Global (a private firm); IIP is published by the Ministry of Statistics & Programme Implementation (MoSPI).
  • Coverage: PMI focuses on manufacturing and services sentiment; IIP covers mining, manufacturing, and electricity sectors.
  • Scale: PMI uses a 0–100 scale; IIP is an index number with a base year (currently 2011-12 = 100).
  • Use: PMI is a forward-looking, high-frequency indicator; IIP measures actual past production volumes.

Why Does Manufacturing PMI Matter for India?

The manufacturing sector contributes approximately 16-17% of India's GDP and is central to the government's 'Make in India' initiative and Atmanirbhar Bharat vision. A sustained PMI above 50 indicates:

  • Growing private sector confidence and investment.
  • Potential for increased employment and wage growth.
  • Positive signal for GDP growth in the coming quarters.
  • Improved export competitiveness, contributing to a better trade balance.

Limitations of PMI

While PMI is a valuable tool, it has limitations that students should be aware of:

  • It is based on a survey of purchasing managers, and therefore reflects perceptions, not verified production data.
  • It does not capture the volume or value of production — only directional change.
  • The sample may not always represent the full diversity of India's large and informal manufacturing sector.

Broader Economic Context

The strong PMI reading for September 2026 adds to a series of positive economic signals for India, including:

  • Robust GST collections crossing ₹2 lakh crore.
  • Strong FDI inflows into the manufacturing sector.
  • India maintaining its position as one of the fastest-growing major economies globally.

However, risks remain: global demand slowdown, elevated inflation in key export markets, and geopolitical uncertainty could dampen growth momentum.

Key Terms to Remember

  • PMI: Purchasing Managers' Index — a leading economic indicator based on surveys.
  • IIP: Index of Industrial Production — measures actual output of industries.
  • S&P Global: Private firm that compiles and publishes India's PMI data.
  • MoSPI: Ministry of Statistics & Programme Implementation — publishes IIP data.
  • Leading Indicator: A data point that changes before the economy changes direction (PMI is a leading indicator).
  • Lagging Indicator: A data point that reflects the economy's past performance (IIP, GDP growth rate).
Tags: PMI manufacturing India economy IIP S&P Global economic indicators September 2026