1. Associate Prof, Dept of Medicine, MJN Govt Medical College, West Bengal.
2. Assistant Professor, Dept of Medicine, North Bengal Medical College & Hospital, Sushruta Nagar, Darjeeling, West Bengal.
3. Associate Professor, Dept of Medicine, North Bengal MedicalCollege & Hospital, Sushruta Nagar, Darjeeling, West Bengal
4. MBBS. Physician, Jamshedpur, Jharkhand.