Dr. Tannu began his professional journey as a lecturer at B.J. Medical College and Sasson General Hospital after earning his postgraduate degree in Skin Diseases, Venereology, and Leprology. Driven by a desire for further knowledge, he obtained a diploma in the same field from Mumbai and a Fellowship from the Royal Society of Health in London.
Following these achievements, Dr. Tannu established a private practice in Pune and served as a Visiting Specialist at several hospitals, including Inlaks & Budhrani, Ruby Hall Clinic, and Police General Hospital.