Explore the critical politics of data in global health. This vital book uncovers how the absence of data on marginalized populations—including sex workers, LGBTQ+ individuals, and drug users—hinders progress in crucial health initiatives worldwide, a key challenge for public health in India. Learn how government decisions and funding gaps, driven by what data is collected and what is ignored, shape access to life-saving services. Through deep research and expert interviews, uncover the paradoxes and the potential of community-led data. A must-read for health professionals, policymakers, and students in India seeking to understand and improve global health equity.