New Delhi, Dec. 7 -- Apple Inc., long famed for its model of stability among Silicon Valley peers, is undergoing its biggest employment shake-up in decades all of a sudden, as senior executives and key engineers.

Over the past one week, Apple has lost its head of artificial intelligence as well as the chief of interface design. The iPhone maker then announced that its general counsel and head of governmental affairs were also quitting the company.

All the four officers reported directly to Chief Executive Officer Tim Cook, with their exits marking an exceptional level of turnover in Apple's C-suite.

According to a report by Bloomberg, more exits are about to come. Johny Srouji - senior vice president of hardware technologies and one of...