In this edition, 21 chapters have been revised completely based on competency-based curriculum. In each chapter, answers are mostly provided in tabulated forms. In Chapter 7, some important issues are highlighted in the format of death certificate. In Chapter 8, few observations on snakebite of experts in this field are also incorporated as well as tuberculosis and HIV/AIDS programs are revised. In Chapter 20, overview of COVID-19 and its available vaccines are described in brief. In Chapter 14, guidelines for handling, treatment, and disposal of waste generated from COVID-19 patients are added. A total of 1097 MCQs are picked up from different universities across India and arranged chapter-wise. Few True/False and Fill in the Blank questions are also provided chapter-wise and in Chapter 17, Ayushman Bharat Health and Wellness Centre is highlighted and in Chapter 21, a total of 24 AETCOM related questions and answer are incorporated. Lastly a new Chapter 22 is incorporated on Family Adoption Program (FAP). Questions from 30 universities are incorporated in this edition to cover a wide range of questions for undergraduates, postgraduates, and researchers.