The 15-year deal marks a major win for India’s second-largest IT firm at a time when the US$283-billion sector is grappling with a weak global economy, trade tensions and shifting US immigration rules.

Infosys said it would build a new, data-driven workforce management platform to replace NHS’ existing electronic staff record system, managing payroll for 1.9 million employees across England and Wales and processing more than £55 billion annually.

The company is set to report its results for the July-September quarter on Oct 16.

Its shares, which were trading flat for most of the day, briefly rose 0.6% to 1,503 rupees after the contract was disclosed. They closed 0.2% down.

The stock has declined nearly 21% so far this year, compared with an about 19% drop in the IT index.