After completing his Masters, Prasad returned to India and joined his father's construction Business, immersing himself in various projects in Karnataka. In 1985, he co-founded Benzex Labs, an API Manufacturing company, which was later acquired by Dr Reddy's. He briefly returned to the construction Business before reappearing on the pharma landscape in 1990 as managing Director of Cheminor Drugs Ltd. Fueled by a spirit of entrepreneurship, Prasad transformed Cheminor into a world class API and Generics manufacturer, largely through his focus on professionalism, good governance and transparency.
In 2001, Cheminor Drugs merged with Dr.Reddy's Laboratories and Prasad took over as the vice-chairman and CEO of the merged entity. Prasad is widely credited as the Architect of Dr. Reddy's successful global generics strategy. He envisioned newer Business platforms like the Custom Pharmaceutical Business and Specialty pharmaceuticals and is dedicated to building the innovation side of the Business.