UPSC Combined Geo-Scientist and Geologist Examination 2020. Union Public Service Commission (UPSC) has given a notification for the recruitment of Combined Geo-Scientist and Geologist Examination 2020. Those Candidates who are interested in the vacancy details & completed all eligibility criteria can read the Notification & Apply Online. Age Limit (as on 01-01-2020) Minimum: 21 Years Maximum: 32 Years Age relaxation is