The Union Public Service Commission (UPSC) has officially released the timetable for the Engineering Services Mains Exam 2026, which will take place on June 21, 2026. The examination will be divided into two shifts: the morning shift from 9 am to 12 noon and the afternoon shift from 2.30 pm to 5.30 pm. Eligibility for this exam requires candidates to have successfully passed the preliminary examination, the results of which were announced on February 27, 2026. The Mains exam will consist of two conventional-type papers in the Engineering Discipline, each lasting three hours and worth a total of 600 marks (300 marks per paper). Candidates must achieve the minimum qualifying marks set by the UPSC to be eligible for the subsequent Personality Test stage. For further details, candidates can visit the official UPSC website.