Answer keys / Paper solution for UPSC Civil Services Preliminary Exam, 2015 is now available at RIJADEJA.com. You can view / download it in an image format by following link. This exam was held on 23rd August, 2015 at various states in India. This exam was conducted by Union Public Service Commission.
Preliminary Exam consist of two papers with MCQ types questions. Both papers carries 200 Marks each. Paper 1 is General Studies and Paper 2 is an Aptitude Test. As per latest changes in UPSC, CSAT paper is only qualifying paper and candidate will have to score a minimum 33% of marks in this paper.