Candidates can effectively make use of government publications in their UPSC preparation by utilizing official reports, schemes, and policy documents. Publications from the Ministry of Home Affairs, Planning Commission, and other relevant departments provide crucial insights into governance, social issues, and economic policies. These documents also prepare candidates for questions related to current affairs and developmental issues in India. Regularly reading government publications helps aspirants stay updated on recent changes and enhances their understanding of factual details, which can aid both in written exams and interviews.