UPSC promotes meritocracy by using a rigorous and transparent selection process based solely on candidates' performance in exams. The focus on objective criteria such as scores in preliminary, mains, and interview stages ensures that selection is based on merit rather than factors like political connections or socio-economic background. Additionally, UPSC periodically revises examination patterns and syllabi to reflect the evolving demands of governance, thus ensuring that only the most capable candidates succeed. This commitment to a fair selection process instills confidence in aspiring civil servants about the opportunities available based solely on their merit.