Disha's BESTSELLER "23 Varsh CSAT Samanya Adhyayan IAS Prarambhik Topic-wise Solved Papers (1995-2017)" consists of past years solved papers of the General Studies Paper 1 & 2 distributed into 9 Units and 39 Topics. This is the 7th edition of the book and has been thoroughly revised and updated. The strength of the book lies in the Errorless DETAILED Solutions. The book is 100% useful for both the General Studies papers (1 and 2) of the Prelims/ CSAT.