This work presents a comprehensive ready reckoner that systematically addresses 90 myths across India’s constitutional jurisprudence, Sanatana Dharma (Hinduism and Indic philosophy), and Indian historical narratives. Designed as a reference for scholars, policymakers, and educators, it provides quick-access myth–rebuttal entries with citations from constitutional law, Supreme Court judgments, dharmic scriptures, and Indian historiography. The study highlights how colonial interpretations, Marxist historiography, and selective readings have shaped public perceptions of Indian civilization. By using evidence-based research methods, this work contributes to constitutional studies, Hindu studies, and Indian history research. It aims to support curriculum reform, public discourse, and fact-checking in academia and civil society.