Dr. Pradeep Chakravarthyf. (Dr.) R. Thiagarajan started his career as a teacher and went on to become Reader and Head, Department of Sanskrit, Presidency College, Chennai, teaching Sanskrit and allied cultural subjects there for over 30 years. He has authored many audioand print books in Tamil, Sanskrit and English, besides translations and textbooks for schools and colleges. He is the founder of the Fellowship of Sanskrit Culture and has been awarded twice by the governor of Tamil Nadu for his contributions to Sanskrit. He is the chairman of Swami Dayananda's Digital Library and Research Centre, Chennai, and the chairperson of the Sanskrit Text Book Committee, Government of Tamil Nadu.