Dr. Sudhir Chandna did his Masters in Genetics (HAU, Hisar, India) and Ph.D. in Biomedical Sciences (University of Delhi, India). He is presently a Additional Director & Senior Scientist (Professor), and is heading the Division of Radiation Biosciences in the Institute of Nuclear Medicine & Allied Sciences at Delhi, India. His laboratory has contributed in the field of Experimental Radiation Oncology, especially in the field of radiation carcinogenesis by revealing “connexins” as potential therapeutic targets to prevent post-radiotherapeutic secondary cancers (Carcinogenesis). He has also been conducting extensive studies on molecular mechanisms of Insect Cell Radioresistance to identify more effective molecular targets for radioprotection. He has worked as Guest Scientist in the Institute of Medical Radiation Biology (Essen, Germany, 1994-1995) and Centre for Radiation Protection Research (Stockholm University, Sweden, 2008). International recognition of his scientific activities include invitations to deliver an “Eye-Opener Lecture” in the International Congress of Radiation Research (ICRR-2011) in Warsaw, Poland, and Plenary Lecture in the 41st Annual Meeting of European Radiation Research Society during Sept 2014 in the Rhodes Island, Greece. He has also been in the Expert Panel of Radioprotection Research programme (CONCERT) of European Commission during 2016 and 2017. He participates in higher education in the field of Cancer Biology, Radiation Biology and Cell Biology, and is actively involved in running a Masters level ‘Radiation Biology and Oncology’ course (as Convener) at the University of Delhi along with imparting M.Sc. and Ph.D. level education/research training at the Institute of Nuclear Medicine & Allied Sciences.