Dr. A. Velumani started Thyrocare Technologies in 1996 as a private lab testing blood samples for thyroid disorders using his provident fund of Rs. 1 lakh. Thyrocare grew to become the world's largest thyroid testing laboratory through franchising to 345 outlets nationwide, offering affordable thyroid and other specialized tests starting between Rs. 400-800 through centralized high-volume processing. Thyrocare ensures quality, cost, and speed through ISO certification, technology, efficient transport of samples and reports, and incentives for employees. The company has grown at 200% annually with a turnover of Rs. 20 crore and plans for expansion, raw material manufacturing, and education.