Retirement and Reengagement as a Consultant
Probably, they might as well officially retire him at some age and reengage him as a Consultant or some such designation suitable on a fixed-term contract. This way, he might even qualify for EP and gratuity, which, if invested in a good portfolio, would be additional income for him. Of course, this might deny the PF Employer's contribution if eligible.
Conditions for Retirement
An employer cannot retire an employee at a certain age unless it is stipulated in an agreement, standing orders, or service rules. Therefore, unless an employee agrees to resign on his own, he needs to be continued subject to his being medically fit. However, an employee may agree to resign if the employer can approach the employee with an offer to engage him as a consultant. Otherwise, any unilateral decision to retire an employee will be squarely covered by retrenchment, as Madhu said.
Regards,
B. Saikumar
Mumbai