This is a Hindi medium (हिन्दी माध्यम) book from Cosmos Publication by Mahesh Kumar Barnwal and Kunal Varma — NCERT Saar Sangrah (NCERT सार संग्रह), a summary of the NCERT books from Class VI to XII in one-liner form, with chapter-wise reverse notes and objective questions. It is the 17th edition. The entire book is written in Hindi in the Devanagari script. The NCERT set from Class 6 to 12 is the acknowledged foundation for UPSC and state PCS preparation, and it is also roughly thirty volumes. Reading them all is the standard advice and, for most working aspirants, the standard failure — not because the advice is wrong, but because the second reading never happens. A saar sangrah solves the second-reading problem rather than the first: it condenses the same material into a form that can actually be revised repeatedly in the months when revision is what matters. The one-liner format is deliberate. NCERT prose is written to explain; examination questions are written to test whether a specific fact is held. Converting a paragraph into the single line the paper might ask about is the transformation candidates otherwise have to perform themselves, slowly, in the margins of their own copies. The "reverse notes" arrangement adds the other direction — approaching the material from the answer back to the fact, which is how recall is actually built rather than how reading is done. Objective questions are given chapter by chapter, so each section closes with a check rather than an assumption of understanding. It is a revision and consolidation title, best used after or alongside the NCERT books rather than as a complete replacement for them. Key Features: Hindi medium book — complete content written in Hindi (Devanagari script) Authors: Mahesh Kumar Barnwal and Kunal Varma Published by Cosmos Publication 17th Edition NCERT Saar Sangrah — summary of Class VI to XII NCERT books One-liner format throughout Chapter-wise reverse notes Objective questions with each chapter Condenses roughly thirty NCERT volumes into a revisable single book Converts explanatory prose into examination-shaped facts Covers history, geography, polity, economics and science across classes Built for repeated revision rather than first reading For UPSC, state PCS and other competitive examinations Best used after or alongside the original NCERT books कॉसमॉस पब्लिकेशन द्वारा प्रकाशित तथा महेश कुमार बर्णवाल एवं कुणाल वर्मा द्वारा तैयार यह 'NCERT सार संग्रह' कक्षा VI से XII तक की NCERT पुस्तकों का वन लाइनर सार है, 15वाँ संस्करण, अध्यायवार रिवर्स नोट्स एवं वस्तुनिष्ठ प्रश्नों सहित। यह पूर्णतः हिन्दी भाषा एवं देवनागरी लिपि में है। कक्षा 6 से 12 तक की NCERT पुस्तकें UPSC एवं राज्य PCS की तैयारी का मान्य आधार हैं, किन्तु वे लगभग तीस खंड हैं — उन्हें एक बार पढ़ लेना सम्भव है, दोहराना प्रायः नहीं हो पाता, और परीक्षा से पूर्व के महीनों में दोहराना ही निर्णायक होता है। सार संग्रह इसी समस्या का समाधान है। वन लाइनर स्वरूप भी विचारपूर्वक है: NCERT का गद्य समझाने हेतु लिखा गया है जबकि प्रश्न यह परखते हैं कि कोई निश्चित तथ्य स्मरण है या नहीं — अनुच्छेद को उसी एक पंक्ति में बदल देना वह कार्य है जो अभ्यर्थी को अन्यथा स्वयं करना पड़ता है। यह पुनरावृत्ति की पुस्तक है, अतः इसे मूल NCERT पुस्तकों के साथ अथवा उनके पश्चात प्रयोग करें।