The fourth edition (revised) is prepared as per Competency-Based Medical Education (CBME) 2024 as prescribed by the National Medical Commission. All chapters are revised, and separate topics on AETCOM, mass disaster, forensic odontology, domestic violence are included. Newer poisons like neonicotinoid insecticide and plant growth regulator are included. Most of the chapters include Clinical– Forensic correlation to facilitate easy learning of the subject. Multiple choice questions (MCQs), short answer questions (SAQs), and long answer questions (LAQs) are included at the end of chapters, and it will give an idea to students for their preparation in final examination. Considering the recent amendments in various Acts like Bharatiya Nyaya Sanhita 2023, Bharatiya Nagarik Suraksha Sanhita 2023 and Bharatiya Sakshya Adhiniyam 2023 are included and a number of landmark judgments given by the honourable Supreme Court of India; the text has been updated extensively like the Medical Termination of Pregnancy Act (Amendment) 2021, the Medical Termination of Pregnancy Rules 2021, the Assisted Reproductive Technology (Regulation) Act 2021, the Assisted Reproductive Technology (Regulation) Rules 2022, the Surrogacy (Regulation) Act 2021, the Surrogacy (Regulation) Rules 2022, etc.