Essential resources for understanding ethical dilemmas in the UPSC syllabus include authoritative texts on public ethics, case studies exemplifying ethical decision-making, and discussions on governance issues. Candidates should analyze codes of conduct applicable to civil services and explore frameworks that address various ethical challenges. Engaging in group discussions about ethical scenarios can also enhance understanding. Additionally, utilizing online courses and seminars focusing on core ethical principles in governance can provide deeper insights and enhance preparedness for related questions in exams and interviews.