This book comprehensively examines ESG principles and Business Responsibility & Sustainability Reporting (BRSR) in the Indian regulatory context. It explains the transition from financial-only reporting to sustainability-focused disclosures, detailing theoretical foundations and practical applications. Authored by CA. Kishor M. Parikh, the text discusses global ESG frameworks, SEBI-mandated BRSR guidelines, and best practices for transparent reporting. It also includes tools, case studies, and assurance insights to help professionals align with evolving norms and investor expectations.