He completed fellowship in Interventional Neuroradiology at the Institute of Neuroradiology, University Hospital Zurich, Zurich, Switzerland in 1999. He had visiting fellowships in Interventional Neuroradiology at Fondation Ophthalmique Adolphe de Rothschild, Paris and University Hospital Eppendorf, Hamburg, Germany. He worked as a Consultant Neurologist & Interventional Neuroradiologist at Sir Ganga Ram Hospital, New Delhi, India from May 1999 till October 2009. He is currently with the Max Group of Hospitals as the Director of Interventional Neurology. His clinical & research interests are in brain and spine interventions, especially carotid stenting and intracranial angioplasty & stenting, aneurysm coiling, brain and spinal AVM embolization. He is the author of several book chapters and original publications in various journals. He has designed a fellowship program in Stroke & Interventional Neurology and started it in the year 2004 at Sir Ganga Ram Hospital, New Delhi. He has now joined Max Super Speciality Hospital, Saket and has taken the Fellowship programme with him. He is closely involved in the development of comprehensive Stroke and Neurointervention centers in Asia Pacific region in collaboration with the universities and major hospitals of this region