UPSC Prelims 2015 answer key were announced on the website of NeoStencil. UPSC Prelims exam was held on August 23, 2015.
Union Public Service Commission’s (UPSC) Preliminary Examination comprises of two objective papers. Each paper is of 200 marks and serve as a screening test.
While Paper-1 of UPSC’s civil services exams (UPSC Prelims) is of General Studies and include current affairs, the Paper-2 is Aptitude Test. Candidates have to score minimum 33% marks to be able to appear in UPSC mains, which is a written exam.
A candidate who qualified for mains in a particular year will be eligible to appear for main exams of that particular year only.