Shri Ajay Kumar Ghosh did his M. Tech in Chemical Engineering and Chemical Technology in 1963 from the Department of Chemical Technology, University of Calcutta in 1963, specializing in Oil Technology, comprising Triglycerides, Essential Oils, and Petroleum Oils & Petrochemicals. He worked in multiple segments of industries including the hydrogenation industry and the edible biscuit manufacturing industry. He developed multiple new varieties of biscuits while he was working in Britannia Biscuit Company Limited, Kolkata; Priya gold Biscuits division of Surya Food & Agro Ltd, Noida, UP; and Sona Biscuits Ltd (Sobisco) , Kolkata. He possesses more than fifty years of hands-on experience in biscuits manufacturing using multiple types of edible material, enzymes, essential oils, antioxidants, food colorants, vitamins and minerals. His expertise is widely acclaimed in India among the biscuits manufacturers.