The pharmaceutical industry is focused on the discovery, development, production, and marketing of drugs, with major global players like Johnson & Johnson and Pfizer leading in revenue. The Indian pharmaceutical sector has evolved significantly over the decades, now accounting for 2.4% of the global market, with a strong emphasis on generic drug manufacturing. With initiatives like 'Pharma Vision 2020', India aims to become a major hub for drug discovery and increase its market share significantly by 2020.