The most relevant current affairs for the UPSC interview phase include those related to national security, economic reforms, environmental issues, and social justice. Aspirants should focus on significant government policies, international relations, and ongoing health crises, as these topics are frequently discussed. Understanding the implications of these issues helps candidates articulate their thoughts better and demonstrate awareness of the socio-political landscape. Newspapers, reliable news apps, and monthly compilations are effective resources for staying updated on these pertinent topics.