Candidates applying for the UPSC EPFO Personal Assistant position must be at least 18 years old, with a maximum age limit varying by category. The upper age limit is 30 years for General and Economically Weaker Section (EWS) candidates, 33 years for Other Backward Classes (OBC), 35 years for Scheduled Castes (SC) and Scheduled Tribes (ST), and 40 years for Persons with Benchmark Disabilities (PwBDs) .