Senior Consultant Neurologist and Neurosurgeon, Kauvery Hospital, TTK Road, Alwarpet, Chennai 600004 since June 2012 till dateCSIR Postdoctoral Fellow, Madras Medical college 1982 -,1983, Senior Consultant Neurologist & H.O.D, Department of Neurology, Global Hospitals and Health City, Perumbakkam, (OMR), Chennai, since March 2012 to February 2013, Senior Consultant Neurologist & H.O.D, Department of Neurology, Global Hospitals and Health City, Perumbakkam, (OMR), Chennai, since March 2012, Consultant Neurologist, Apollo Hospital, Chennai 1983 to March 2012, Consultant Neurosurgeon, Apollo Hospital, Chennai 1990 to March 2012, Adjunct Professor (Dr MGR University) since Sept 2010