This presentation provides a detailed insight into the manufacture of drugs as per the Drugs and Cosmetics Act, 1940, and its Rules, 1945. It covers key aspects such as Good Manufacturing Practices (GMP), licensing requirements, loan and repacking licenses, prohibited drug manufacturing, conditions for new drug manufacturing, and penalties for non-compliance. It also explains the roles of State and Central authorities in granting manufacturing licenses. This guide is essential for pharmacy students, pharmaceutical professionals, and regulatory personnel involved in drug production and compliance.