Photochemistry, the study of chemical reactions initiated by light, has emerged as a powerful tool in modern chemistry. This white paper delves into the transformative potential of photochemistry in advancing synthesis processes, focusing on the pioneering work and expertise of Piramal Discovery Solutions (PDS). The application of photochemistry not only addresses synthetic challenges but also aligns with the principles of green chemistry, shortening a synthetic route, offering cost-effective and environmentally friendly solutions. Photochemistry is a viable synthetic strategy for producing Active Pharmaceutical Ingredients (APIs), from discovery all the way to commercialization.