In the UPSC mains, the optional subject carries a significant weightage, accounting for up to 500 marks out of the total 1750 marks. Candidates have the option to select one subject from a diverse list, and performance in this section can substantially influence overall rankings. Since it allows aspirants to study a subject of their choice in depth, many candidates consider their optional subject a strategic element of their preparation. Thus, choosing an optional subject that aligns with one's strengths, interests, and experience is crucial for success in the UPSC examination.