Eligibility Criteria for Indian Economic, Statistical Service Exam (UPSC IES / ISS)IES Indian Economic Service Exam & ISS Statistical Exam, UPSC, UPSC Age Limits, UPSC Eligibility Criteria / Leave a Comment / By UPSC Results, Question Paper, Syllabus, Eligibility Criteria, Cut-off Marks UPSC IES / ISS Eligibility Criteria – Indian Economic Service and Indian Statistical Service