UPSC CSE Prelims Answer Key 2025

UPSC Civil Services Preliminary Examination 2025 was held on 01 June 2025. Unlike SSC and IBPS, UPSC does not release an official provisional answer key. However, unofficial answer keys prepared by leading IAS coaching institutes such as BYJU's IAS, Vision IAS, and Vajiram & Ravi are widely trusted by aspirants. UPSC GS Paper-1 consisted of 100 questions for 200 marks with 1/3rd negative marking.

1. 1
   UPSC does not release an official answer key — go to reputed IAS coaching websites
2. 2
   Check Vision IAS (visionias.in), Vajiram & Ravi, or BYJU's IAS for comprehensive answer keys
3. 3
   Match your question booklet series (A/B/C/D) to the relevant set answer key
4. 4
   Cross-check each answer and maintain a subject-wise score
5. 5
   Compare your expected score with previous years' UPSC Prelims cut-off for your category
6. 6
   For CSAT Paper-2, check if you're scoring above the qualifying threshold of 66/200

1. 1
   UPSC does not provide an objection mechanism for CSE Prelims answer key
2. 2
   If you believe a question is incorrect, you may write to UPSC at upsc.gov.in/contact-us
3. 3
   Formal challenges are typically not entertained for the Prelims stage
4. 4
   For Mains, UPSC may consider representations on mark-related matters after declaration