Dr. (Prof.) P. N. Renjen, graduated from Gandhi Medical College, Osmania University Hyderabad and did his DM Neurology from one of the most prestigious Institutes of the country – The National Institute of Mental Health & Neurosciences (NIMHANS), Bangalore where he received his Neurology training. Dr. Renjen has been actively involved in teaching programmes and was instrumental in starting of the DNB programme at the Sir Ganga Ram Hospital and subsequently at the Indraprastha Apollo Hospitals in New Delhi.