The thirteenth edition has been fully revised and updated. Theory has been given at start of each chapter (Theory divided chapter-, topic-, sub-topic wise – Small/one-liner points in each topic/Important previous MCQs marked as Q). Key Revision Point Boxes given on side of each topic for Must-Know MCQ facts. New and recent examination-based pattern has been adopted chapter-wise (Focus on Wider coverage, Concept development, One-liner approach, Value-based MCQs, Applied aspect MCQs, Image-based MCQs, Updated Golden Points). NEW chapter-wise image-based MCQs with explanatory answers.//NEWLY added 130+ images, flowcharts and diagrams.//Recent most solved MCQ papers (2021-2012).//Recent/New topics and changing concepts in PSM.//NEW Initiatives (Indian): SUMAN 2019, SAANS 2019, AAROGYA SETU 2020, PMSMA, PMMVY 2017, DAKSHTA 2015, Ayushman Bharat 2018, Anemia Mukt Bharat 2018, Swacch Bharat Mission, National Nutrition Mission (NNM) 2017-18, National Strategic Plan for Malaria Control in India (NVBDCP) 2017-22, National Strategic Plan for Tuberculosis Control 2012-2017, Accelerated Plan for Elimination of Lymphatic Filariasis (APELF) India 2018, National Program for Prevention and Control of Fluorosis (NPPCF) 2014, Td Vaccination Guidelines 2018-19.//NEW Initiatives (Global): Global Program to Eliminate Lymphatic Filariasis (GPELF), Global Health Sector Strategy on Viral Hepatitis 2016-2021, EYE Strategy, Global Eye Health Action Plan 2014-19, Global Strategy for Women’s, Children’s and Adolescent’s Health 2016-2030, Integrated Global Action Plan for Prevention and Control of Pneumonia & Diarrhoea (GAPPD), Global Technical Strategy for Malaria (2016-2030). NEW Topics in Public Health: Coronavirus and Covid-19 disease, Mucormycosis, Emerging and Re-emerging Pathogens, Air Quality Index (AQI), Global Hunger Index (GHI),Tribal Health in India, Health Index of India, Global Hunger Index (GHI), IMA Guidelines on Period of Viability, Delayed Immunization Limits (NIS), BMW Categorization, Nutrition Rehabilitation Centres (NRCs), Contraception and Adolescence, Health Care and System, Adjuvants in Vaccines.//NEW Topics in Disease Control: Covid-19 Vaccines, Measles Treatment, Diphtheria Treatment, Chicken Pox Vaccines, TB Facts Epidemiology, TB and Co-morbidities, IPV vs flPV, Treatment of Severe/Complicated Malaria, Active Surveillance in Kala Azar, Lifestyle Modifications to Manage Hypertension, Vision Impairment, Oral Diseases, Key Population Groups in Global Plan 90-90-90 Targets for TB. NEW Updated Guidelines: ARV PEP Guidelines for HIV NACP 2021-22, NTEP Guidelines 2020-21, Rabies Notification Guidelines 2021-22, NPCBVI Guidelines 2021-22, NDHM 2020-21, Covid BMW Management Guidelines 2021-22, MTP Act Guidelines 2021-22, Nutrition Guidelines 2021-22, NMC Guidelines 2020-21, WHO IHR Guidelines 2021-22.//Key Guidelines in Public Health: NEW RNTCP Guidelines 2018-19, NPEP Guidelines 2018-19 (AFP Surveillance Indicators), RCH Program Guidelines 2018-19 (New Initiatives in Family Planning, National Family Planning Indemnity Scheme, Post-natal visits guidelines), NACP Guidelines 2018-19 (CD4 treatment criteria), NVBDCP Guidelines 2018-19 (Kala azar treatment, Malaria treatment), H1N1 Categorization Guidelines in India 2018-19, National Immunization Schedule (NIS) 2018-19, BMW Treatment Standards in India 2018-19, Incentive Packages under National Health Programmes 2018-19, Emergency Response Support System (ERSS) 2019-20, Specific Targets for SDG Target 3.3 on Infectious Diseases , New Developed Vaccines (Dengue, Leprosy, Malaria, Rabies, MR), WHO Rabies Vaccination Guidelines 2018, WHO Uniform MDT Guidelines 2018-19, WHO-UNICEF BFHI Guidelines 2018-19, WHO Cancer Data (World, India) 2018, WHO ICD-11 Classification 2018, International Death Certificate (IDC) Format 2018-19, Goalposts to Construct HDI Index 2018-19, Poverty Criteria - MDPI, AHA Revised Jones Criteria for Diagnosis of Rheumatic Fever 2015, Policies and Legislations (Open Vial Policy 2015, The Rights of Persons with Disabilities Bill 2016-17, National Health Policy 2017). Updated compilation of Public Health Statistics of India 2021-22.