External factors influencing UPSC exam competitiveness include changes in government policies, availability of resources, and shifts in societal priorities. Economic conditions, like job opportunities post-examination, can also affect the number of aspirants. The emergence of new coaching centers and online platforms increases access but also raises competition levels. Additionally, social media can influence perceptions of success and expectations among candidates. Recognizing these factors helps aspirants strategize their preparation more effectively, considering the evolving landscape in which they’re competing.