Professor Kumar is the Head of Discipline for Obstetrics & Gynaecology. He trained in Obstetrics and Gynaecology in Singapore, the United Kingdom and Australia and has a Doctor of Philosophy degree from the University of Oxford. He is a Fellow of the RCS(Ed), RCOG and RANZCOG. He completed his subspecialist Fellowship in Maternal & Fetal Medicine at Queen Charlotte's & Chelsea Hospital/Imperial College London before being appointed to the consultant staff there in 2001. He was a member of the RCOG's Guidelines and Scientific Advisory Committees and is an associate editor of the journal Fetal and Maternal Medicine Review published by Cambridge University Press.

Prof Kumar is an accredited MFM subspecialist both in the UK and Australia and joined the Mater Mothers' Hospital and Mater Research Institute-University of Queensland in 2013 as Professor of Obstetrics & Gynaecology and Senior Staff Specialist in Maternal & Fetal Medicine/Obstetrics & Gynaecology. His area of research interests is in fetal imaging, placental biomarkers and the prediction of adverse perinatal outcomes and has numerous publications in this area. He regularly supervises PhD and Honours students.