When approaching optional subjects, the key differences lie in the research depth and personal interest involved. Candidates often have more latitude to choose an optional subject that aligns with their academic background or passion. It’s crucial to evaluate syllabus comprehensiveness and assess previous year papers for study strategies. Successful preparation requires focusing on conceptual clarity, integrating current affairs, and practicing answer writing specific to the subject. Continuous self-evaluation through mock tests can also gauge performance and identify areas needing improvement.