Resources that are most effective for preparing for the Science and Technology paper in UPSC include government publications, relevant textbooks, and reputable online platforms focusing on current innovations. Following scientific journals and tech news helps candidates stay updated on breakthroughs and policy implications. Integrating reports from institutions such as the Indian Space Research Organisation (ISRO) or the Council of Scientific and Industrial Research (CSIR) enhances awareness of national priorities in science. Engaging in discussions and group studies can further clar the understanding of application-based questions, solidifying grasp of key concepts in the subject.