New Delhi, July 21 -- More than 4,500 Google employees have signed a petition calling on Chief Executive Officer (CEO) Sundar Pichai to introduce stronger safeguards against layoffs, as the company continues to expand its investment in artificial intelligence while reducing headcount across multiple teams.

Members of the Alphabet Workers Union delivered the petition to Pichai's office after nearly 100 employees gathered outside Google's campus in support of the campaign. Many demonstrators wore black T-shirts, while others displayed a long white banner listing the names of signatories.

The union described the petition as the largest employee-led feedback initiative on job security in Google's history.

Addressed to Pichai and three seni...