CEO Vishal Sikka tried to remake Infosys' culture and service offerings. That led to tension with the company's founders.
Infosys, CenturyLink, Cisco and other tech names were struggling Friday alongside troubling news from Washington and terror attacks in Spain.
The move spooked investors and sent Infosys stock down.
Infosys is buying the London-based product design firm for an undisclosed sum.