Errorless BPSC 15 Year-wise General Studies Prelim Solved Paper 1 (2004 – 19) consists of past 15 years Solved papers of Bihar PSC Exam. The book consists of Prelim Papers from 2004 – 2019. The USP of the book is the detailed explanation of each question. The answer key has been verified with the BPSC. The book is also useful for UPSC and other PSC Exams.