The Disha Combo (2 Books) of Topic-wise UPSC Civil Services IAS Prelims (1995-2026) and Mains (2025-2013) Previous Year Solved Papers is an English medium set for aspirants preparing for both stages of the UPSC Civil Services Exam. Both books are written in English; this combo is not the Hindi medium edition. The first book, Errorless 32 Topic-wise UPSC Civil Services IAS Prelims Previous Year Solved Papers 1 & 2 (17th Edition) by Dr. Mrunal Patel, covers 32 years of Prelims papers from 1995 to 2026, with 3760 General Studies (Paper 1) and 1520 CSAT (Paper 2) questions, all solved and arranged topic-wise. The second book, 13 Topic-wise UPSC Civil Services IAS Mains Solved Papers, covers 13 years of Mains papers from 2013 to 2025, arranged topic-wise. Together, the two books let aspirants see which topics UPSC asks about most often in both Prelims and Mains, and how its questions have changed over the years. The set is also useful for State PCS civil services exams, which often follow a similar pattern. Key Features: English medium: both books are written in English (not Hindi medium) Combo of 2 books: UPSC IAS Prelims and UPSC IAS Mains Prelims: 32 years of PYQs (1995-2026), 17th Edition, by Dr. Mrunal Patel Prelims: 3760 GS (Paper 1) and 1520 CSAT (Paper 2) questions, all solved Mains: 13 years of PYQs (2025-2013), solved Both books arranged topic-wise Published by Disha Publication For UPSC IAS and State PCS civil services exams यह Disha Publication का 2 पुस्तकों का कॉम्बो सेट है, जिसमें UPSC सिविल सेवा (IAS) प्रारंभिक परीक्षा (1995-2026) और मुख्य परीक्षा (2025-2013) के टॉपिक-वाइज़ हल प्रश्न-पत्र दिए गए हैं। ये दोनों पुस्तकें अंग्रेजी माध्यम (English Medium) में हैं; यह हिंदी माध्यम का संस्करण नहीं है। प्रारंभिक परीक्षा की पुस्तक डॉ. मृणाल पटेल द्वारा तैयार की गई है (17वाँ संस्करण), जिसमें पेपर 1 (सामान्य अध्ययन) के 3760 एवं पेपर 2 (CSAT) के 1520 प्रश्न हल सहित दिए गए हैं। मुख्य परीक्षा की पुस्तक में 2013 से 2025 तक के 13 वर्षों के हल प्रश्न-पत्र टॉपिक-वाइज़ दिए गए हैं। यह सेट UPSC IAS एवं राज्य PCS सिविल सेवा परीक्षाओं हेतु उपयोगी है।