Hi Aspirant,

The eligiblity criteria for UPSC exam is that The candidate must have attained the age of 21 years and must not have attained the age of 32 years (for the General category candidate) on 1 August of the year of examination. Prescribed age limits vary with respect to caste reservations.  The certificate eligiblity says that The candidate must hold a degree from Government recognised Universities or possess an equivalent qualification.

Hope it helps!!