Purnendu Chatterjee is an Indian entrepreneur and the founder of the Chatterjee Group, a diversified business conglomerate. He has played a significant role in various industries, including chemicals, healthcare, and energy. Under his leadership, the group has expanded its operations both domestically and internationally. Chatterjee is also known for his contributions to the pharmaceutical sector, particularly through investments in biotechnology and drug development. His vision has helped foster innovation and growth in the industries he is involved in, making him a prominent figure in the Indian business landscape.