UPSC PSIR Previous Year Questions (2009–2022) Practicing previous year question papers from 2009 to 2022 is essential for mastering the UPSC Political Science and International Relations (PSIR) optional. These papers help in understanding the pattern, recurring themes, and important topics, enabling focused and strategic preparation. https://politicalsciencesolution.com/upsc-political-science-and-international-relations-previous-year-question-papers/