Common themes candidates should explore in their essays include social justice, environmental sustainability, and governance issues. Discussing contemporary topics like economic inequality or climate change allows candidates to demonstrate awareness of pressing issues. Essays should also reflect on India's progress, challenges, and potential solutions. Incorporating real-world examples and case studies enriches the discussion, showcasing critical thinking and a depth of understanding. Ultimately, these themes align with the core values of public service, making candidates’ essays reflective of their commitment to social responsibility.