The Union Public Service Commission (UPSC) will close the objection window for the Civil Services Examination (CSE) Preliminary 2026 answer key today, May 31, 2026, at 6 PM. Candidates who appeared for the examination and find any discrepancy in the provisional answer key can submit their objections through the official online portal at upsconline.nic.in.This year, around 5.49 lakh candidates registered for the examination. UPSC has clearly stated that objections submitted through email, postal mail, or any offline method will not be accepted and only representations made through the online portal will be considered.The UPSC CSE Preliminary examination 2026 was conducted on May 24, 2026, and the provisional answer key was released on May 27, 2026.UPSC CSE Prelims 2026: Steps to raise objectionsCandidates can follow these simple steps to submit challenges against the provisional answer key:Visit the UPSC online application portal and log in using One-Time Registration (OTR) credentialsOpen the candidate dashboardClick on the Question Paper Representation (QPRep) optionSelect the correct question booklet series or codeChoose the question you want to challengeProvide a clear explanation supporting your objectionAttach at least three authentic references or supporting sourcesSubmit the objectionEvery objection will be carefully reviewed by subject expert panels. The experts will examine the claims, supporting documents, and references before deciding whether any changes are required in the answer key.UPSC CSE Prelims 2026: How to download the answer keyCandidates who have not yet downloaded the provisional answer key can follow these steps:Visit the official UPSC portal at upsconline.nic.inGo to the “What’s New” section or find the answer key linkOpen the link for Civil Services (Preliminary) Examination 2026 – General Studies Paper I or General Studies Paper II (CSAT)The answer key PDF will appear on the screenDownload and save it to compare responses and estimate performanceCandidates should know that UPSC will release the final answer key only after the completion of the entire examination process and announcement of final results.Aspirants are advised to submit objections carefully before the deadline ends today, as no further offline requests or appeals will be entertained.Ready to navigate global policies? Secure your overseas future. Get expert guidance now!