The historical impacts of UPSC examinations on public service in India are significant. UPSC has played a vital role in establishing a merit-based selection process for civil services, leading to a qualified and efficient bureaucracy. This has resulted in professional governance, policy implementation, and societal development. Additionally, the UPSC's role in shaping leadership cultivates a culture of accountability and social service. Over the years, the examination has also evolved to incorporate contemporary issues, reflecting the changing dynamics of Indian society and governance.