Sick leave for 15 years?

This article States that the employee is in sick leave for 15 years in IBM is going to sue the company for not giving him a raise?Just curious https://www.indiatoday.in/technology/news/story/ibm-employee-who-has-been-on-leave-for-15-years-sues-company-for-not-raising-his-salary-2379383-2023-05-15 #ibm #tech

IBM employee who has been on leave for 15 years sues company for not raising his salary

India Today