UPSC ESE Prelims 2026 GS & Engineering Aptitude Question Paper (08-Feb-2026) serves as a critical benchmark for engineering graduates targeting high-ranking technical positions within the Government of India. This 200-mark assessment consists of 100 multiple-choice questions focusing on interdisciplinary topics such as Engineering Mathematics, Ethics and Values, Project Management, and Standards and Quality practices. Analyzing this paper is essential for mastering the breadth of the ESE Paper-I syllabus and understanding the latest analytical trends necessary to clear the competitive preliminary cutoff of the Indian Engineering Services exam.