The maximum age limit for general category candidates appearing for UPSC is typically 32 years. However, there are variations based on relaxation rules for different categories, such as OBC, SC/ST, and others, who have extended age limits. Candidates should refer to the official UPSC notification for the most accurate and detailed information regarding eligibility and age limits for various categories. Being aware of these regulations is crucial for applicants as age eligibility is a fundamental criterion for sitting for the UPSC examination.