The UPSC assesses candidates' subjective responses by evaluating clarity of thought, coherence, and the depth of analysis presented in their answers. Assessors look for well-structured arguments that showcase an applicant's knowledge base and critical thinking capabilities. Moreover, the examination emphasizes originality in responses, requiring candidates to apply theoretical knowledge to practical scenarios. Effective communication skills, clarity of expression, and concise articulation of ideas are crucial in this assessment, as they reflect a candidate's readiness for real-world governance challenges.