RAS Mains Vyavahar (व्यवहार) Booster Book 2026 by Kapil Choudhary is a Hindi medium book on the Behaviour (Vyavahar) part of the RAS Main Examination (मुख्य परीक्षा). The whole book is written in Hindi (Devanagari script), so Hindi medium aspirants can prepare this subject in the language they will write the mains in. The author cleared the RAS 2018 examination with 129th rank. This is the 2nd Edition (द्वितीय संस्करण), published by Booster Academy (Way To Success). The book is based on the latest pattern (नवीनतम पैटर्न पर आधारित) and prepared for RAS Mains 2026. Behaviour is a descriptive, answer-writing subject in the mains, and aspirants need clear concepts and well-structured answers rather than lists of facts. The booster book format helps with focused study and quick revision before the exam. It is prepared for the RAS Main Examination conducted by RPSC and is also useful for other RPSC and RSSB examinations where behaviour-related topics are asked. Key Features: Written entirely in Hindi (Hindi medium) Vyavahar (Behaviour) for RAS Mains 2026 (मुख्य परीक्षा) Based on the latest pattern Booster book format for focused study and quick revision 2nd Edition, Booster Academy For the RPSC RAS Main Examination and other RPSC and RSSB exams By Kapil Choudhary (RAS 2018, 129 Rank) यह पुस्तक "व्यवहार बूस्टर बुक – RAS 2026 मुख्य परीक्षा" कपिल चौधरी (RAS 2018, 129 रैंक) द्वारा लिखित है और बूस्टर एकेडमी द्वारा प्रकाशित है। यह पूर्णतः हिंदी माध्यम में है। यह द्वितीय संस्करण है और नवीनतम पैटर्न पर आधारित है। यह RAS मुख्य परीक्षा 2026 तथा RPSC एवं RSSB की अन्य प्रतियोगी परीक्षाओं के लिए उपयोगी है।