Essential resources for keeping up with national news for UPSC include reputable newspapers like The Hindu and Indian Express, magazines like Yojana and Frontline, and online platforms such as Rajya Sabha TV and PIB. These sources provide comprehensive coverage of political, economic, and social issues. Additionally, regularly accessing current affairs compilations and government reports can help aspirants stay informed. Engaging in summary notes from these sources ensures better retention and serves as a quick reference for revision. Staying updated is crucial for effective exam preparation and interview readiness.