Past Positions: Senior Scientist and Assoct Professor, Department of Immunology and Immunogenetics, All India Institute of Medical sciences, New Delhi-110059.Senior Consultant and Head, Department of Transplant Immunology and Molecular Genetics, Indraprastha Apollo Hospital, New Delhi.Senior Consultant, Department of Biochemistry and Molecular Diagnostics, Asian Institute of Oncology, SL Rehija Hospital, Mumbai-16. Senior Consultant and Head, Tx.Immunology &Advanced Molecular Diagnostics, Kokilaben Durabai Ambani Hospital, Mumbai. Senior Consultantand Head, Department .of Biochemistry and Molecular Diagnostics, Sevenhills hospital, Mumbai. 25 Years in immunogentics of Diseases, Immunobiology of Transplantation and Molecular Diagnostics.