The revised and updated 7th Edition of the Bestselling UPSC Civil Services IAS Prelims 15 Previous Year-wise Solved Papers 1 & 2 (2025 - 11) consists of past 15 years Solved papers of General Studies (Paper 1) & CSAT (Paper 2) since when the Prelim exam (new pattern of 2 Papers) was first introduced. ? ?? This new edition now comes inclusion of 2025 solved Paper with Notes & Sources for a lot of questions. ? ?? The notes provides you additional value added inputs, whereas the Source will help you locate the sources such that you can shape your preparation. ? ?? Another USP of the book is its Errorless Solutions which have been mapped with the UPSC Answer key till 2024. ? ?? The book provides solutions to each and every question immediately after the question paper. ? ?? These tests can also be taken as Mock Tests.