Candidates should incorporate interdisciplinary findings in their essays for UPSC by drawing connections between various fields such as economics, sociology, and political science. This approach demonstrates a well-rounded understanding of complex issues, enabling deeper analysis and exploration of topics. Integrating perspectives from different disciplines allows candidates to provide comprehensive arguments and illustrate the multifaceted nature of governance and social issues. Utilizing case studies or examples from varied fields can enhance the richness of their essays, making responses more engaging and insightful.