The 6th edition serves as a definitive resource for nursing students, educators, and practitioners specializing in mental health care. It covers core psychiatric concepts, advanced therapeutic communication techniques, and evidence-based practices essential for managing mental health disorders. This edition integrates updated DSM criteria, legal and ethical considerations, and the latest developments in psychopharmacology and nursing interventions. Enhanced with real-world case studies, clinical scenarios, and critical thinking exercises, it equips nurses with the skills to provide holistic and patient-centered psychiatric care across diverse settings. Comprehensive and user-friendly, it emphasizes the importance of empathy, resilience, and self-care in mental health nursing practice. A comprehensive textbook compiled to meet the requirements as per revised INC syllabus for BSc nursing students. Written in easy to understand language following a lucid style. A perfect blend of knowledge on psychiatry and psychiatric nursing. Covers all major psychiatric disorders based on ICD-11 classification and nursing interventions. Question bank and multiple choice questions (MCQs) provided at the end of each chapter to improvs self-evaluation and robustness in term end and competitive examinations. Appendices include revised formats, objective structured practical/clinical examination (OSPE/OSCE) and latest drug guide. Online resource material: Audio Paathshala, viva voce and additional MCQs. Serves as a life-long companion for basic nursing students and professionals.