Candidates can include a focus on socio-economic issues in their preparation strategy for the UPSC exam by staying updated on current affairs and integrating them into the syllabus. Regularly reading newspapers, journals, and reports can help candidates understand prevailing socio-economic challenges and government responses. Engaging in discussions about social justice, inequality, and economic policies can deepen critical thinking. Candidates should also explore case studies highlighting successful interventions and failures, creating a nuanced perspective on socio-economic issues. This well-rounded approach ensures they can effectively address related questions in both Mains and Interview stages.