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32
2024
36
2023
34
2022
38
2021
40
2020
National Health Programmes — NTEP, NVBDCP, PMJAY, TB-Mukt Bharat
Frequency: Every year
Epidemiology — measures of association, study design, screening
Frequency: Every year
Biostatistics — sensitivity, specificity, PPV, NPV, chi-square
Frequency: Every year
Immunization — NIS schedule, vaccine types, cold chain
Frequency: Often
Demography — census, TFR, MMR, IMR
Frequency: Often
Nutrition — ICDS, mid-day meal, micronutrient deficiency
Frequency: Sometimes
Environmental health — water, sanitation, air pollution
Frequency: Sometimes
Park's Textbook of Preventive and Social Medicine
K Park · 26th
The single most important PSM text. Read epidemiology, biostatistics, NHP, immunization, and environmental health sections in full. UPSC CMS leans heavily on Park.
Community Medicine with Recent Advances — AH Suryakantha
AH Suryakantha · 6th
Indian-context PSM with recent updates to National Health Programmes. Useful supplement to Park.
Sn-Nout, Sp-Pin — Sensitive test rules disease OUT, Specific test rules disease IN. PPV is "if positive, how likely real" = TP / (TP + FP).
UPSC CMS Paper II contains ~32 Preventive & Social Medicine questions. PSM weightage has been rising — from 32 in 2024 to 40 in 2020.
For ~90% of UPSC CMS PSM questions, Park alone is sufficient. Add Suryakantha for the most recent National Health Programme updates.
National Health Programmes (especially NTEP for TB), biostatistics (sensitivity / specificity / chi-square), and epidemiology study design questions appear every year.
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Medically reviewed by Dr. Ananya Reddy, MBBS, AIIMS New Delhi (2018), UPSC CMS AIR-1 (2024). Last reviewed 21 July 2026.