Consultant Neuro Surgeon, Kalinga Hospital Former Professor Neurosurgery, NIMHANS , Banagalore, Chief of neurosurgery, Kalinga Hospital, A neurosurgeon of International repute, Dr. Das was formerly Professor and Director of Neurosurgery in NIMHANS (National Institute of Mental Health and Neurological Sciences) at Bangalore, He was also the Medical Superintendent at NIMHANS for a long time