India's manufacturing sector expanded at its fastest pace in three months in May, with the HSBC India Manufacturing Purchasing Managers' Index rising to 55.0 from 54.7 in April. The improvement, driven by stronger domestic demand, new orders and output growth, came despite sharply elevated input costs that goods producers attributed to ongoing geopolitical tensions.

The final May reading, released on Monday by S&P Global, was also above the flash estimate of 54.3 released earlier in the month. A PMI reading above 50 denotes expansion; below 50 denotes contraction.

Off a four-year low

The May figure marks a meaningful pickup from March, when the index had slipped to 53.9 — the weakest improvement in business conditions in nearly four years. April's reading of 54.7 had begun the recovery, and May has now extended it. The PMI is compiled by S&P Global from responses to a panel of around 400 purchasing managers across India, with this round conducted between 8 and 22 May.

A sector-level story

Beneath the headline number, the data tells a layered story. Producers of capital goods led the acceleration, followed by intermediate goods makers — both categories typically associated with industrial and infrastructure activity. Consumer goods makers, in contrast, reported a slowdown, suggesting that the broader expansion is being driven less by household demand and more by upstream business and government-linked spending.

New orders and output both grew at the fastest pace since February. Panellists attributed the upturn to underlying demand strength, infrastructure projects and new business wins.

Stockpiling and the cost story

One of the more striking signals in the May data is on inventories. Stocks of finished goods rose for the second consecutive month, with the pace of accumulation reportedly the highest in 11 years — a sign that supply has been running ahead of immediate demand at the finished-goods level. Input buying also grew at a three-month high, well above the historical trend, with companies seeking to build contingency stocks.

On prices, input cost inflation hit a 45-month high — the highest in nearly four years — with panel members citing greater outlays on energy, fuel, materials and transportation as the war in the Middle East kept commodity prices elevated. Output price inflation, in contrast, eased more sharply, in what HSBC noted could suggest a squeeze on manufacturers' margins as firms absorb costs rather than pass them on.

Employment and confidence

Greater production requirements led to another round of hiring across the sector, with the rate of job creation described as solid, though slower than in April. Business confidence stayed positive, with companies expressing the hope that cost pressures will ease later in the year. Advertising activity and strong order pipelines were cited as additional supports for the medium-term outlook.

What it means

Read in context, the May PMI signals a manufacturing sector that is finding its feet again after a soft patch earlier in the year, with domestic demand doing most of the heavy lifting. New export orders rose at a softer pace, suggesting that external demand is not yet the engine of the current upturn.

The combination of accelerating growth and elevated input costs poses a familiar challenge for policymakers: how to sustain industrial momentum while keeping a lid on the cost pass-through to consumers. The Reserve Bank of India's interest-rate trajectory and any further geopolitical escalation in the Middle East are likely to remain the two key variables to watch over the coming months.

The road ahead

For Indian manufacturers, the May reading is encouraging but comes with a caveat. The 11-year-high accumulation of finished-goods inventories will be a number to watch in June and July — if it continues to outpace demand, it could eventually weigh on production schedules. The June PMI, due in early July, will be the first signal of whether May's strong momentum carries forward or settles back as the inventory cycle adjusts.