1. Assistant Professor (Ad hoc), Department of Medical Oncology, Dr. B. Borooah Cancer Institute, Guwahati, Assam, India.
2. Associate Professor, Department of General Medicine, Jagannath Gupta Institute of Medical Sciences & Hospital, Kolkata, West Bengal, India
3. RMO cum Clinical Tutor, Department of Radiotherapy, Medical College Kolkata, West Bengal, India.