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        Fellowship in Infectious Diseases (Addenbrookes Hospital, Cambridge, UK),
              
 Fellowship in Infectious Diseases (PD Hinduja hospital and MRC),
              
 Consultant Infectious Diseases, PD Hinduja National Hospital & Medical Research Centre, Mumbai, India.
        Consulting ENT Surgeon, AMRI Hospital, Kolkata.
         Director, Critical Care Services,
            
 Nanavati Max Super Speciality Hospital, Mumbai.