Customer relationship management (CRM) is important for pharmaceutical companies to maximize revenue from their products before patents expire. CRM involves collecting customer data to target marketing, develop new products, and improve customer service. In India, common CRM practices for pharmaceutical companies include sponsoring doctors' conferences and gifts, offering retailers bonuses and discounts, and providing patients with free health camps and samples. CRM can help pharmaceutical companies increase sales, reduce costs, and gain insights for innovation. However, CRM in pharma must comply with regulations, ensure data privacy, and avoid discriminating against any groups. The future of pharma CRM may involve more online physician communities and tools for data analysis.