Eligibility for UPSC Engineering Services Examination | ESE ... The Engineering Services Examination (ESE), also known as the Indian Engineering Services (IES), is conducted annually by the Union Public Service Commission (UPSC) to recruit engineers for various central government posts. The exam covers four engineering disciplines—Civil, Mechanical, Electrical, and Electronics & Telecommunication—and consists of a three-stage selection process: Prelims, Mains, and a Personality Test. ESE is a hi