Devasahayam Christopher, DNB, heads the department of pulmonary medicine at the Christian Medical College, Vellore, a well-known referral hospital in Southern India. His basic medical training was from India and he has had advanced training in the United Kingdom and Australia. He holds the clinical title of professor of pulmonary medicine. He is a recipient of prestigious training fellowships: the Raj-Nanda and the British Thoracic Society fellowship for training in interventional pulmonology, in the UK; international fellowship of the American Association of Respiratory Care and the Senior Training Fellowship for training in Interventional Pulmonology in Marsielle. He is a Fellow of the Indian Chest Society, Royal College of Physicians & Surgeons, Glasgow and the American College of Chest Physicians and the Asia Pacific Society of Respirology. He is the Zonal Chairman of the Indian Chest Society and past president of the Indian Association of Respiratory Care. Dr Christopher’s research awards include "The Rising Star of Global Health Care" by the Grand Challenges, Canada to work on a point of care test for extra-pulmonary TB. He is the chair of the RePORT India. His major research interest in the area of TB risk in health care workers and his group has performed the largest study in health care workers' TB infection risk, in India. Apart from TB, his research interests include Interventional pulmonology, asthma, COPD, and pleural diseases.  He is on the advisory boards of journals and reviews articles for national and international journals.  He authored eight chapters in books and has more than 90 publications in various national and international journals. He has been an invited speaker at numerous national and international conferences, CMEs, and workshops.