1. Department of Materia Medica, Mahesh Bhattacharyya Homoeopathic Medical College and Hospital, Government of West Bengal, Howrah, India.
2. Naxalbari Rural Hospital, Darjeeling, India.
3. Kharibari Rural Hospital, Darjeeling, India.
4. Department of Pathology and Microbiology, D.N. De Homoeopathic Medical College & Hospital, Government of West Bengal, Howrah, India.
5. Department of Pathology and Microbiology, Mahesh Bhattacharyya Homoeopathic Medical College and Hospital, Government of West Bengal, Howrah, India.
6. East Bishnupur State Homoeopathic Dispensary, Chandi Daulatabad Block Primary Health Centre, Under Department of Health & Family Welfare, Government of West Bengal, South 24 Parganas, India,
7. Mahesh Bhattacharyya Homoeopathic Medical College & Hospital, Government of West Bengal, Howrah, India.
8. Department of Repertory, D.N. De Homoeopathic Medical College and Hospital, Government of West Bengal, Kolkata, India.
9. Department of Forensic Medicine and Toxicology, Pratap Chandra Memorial Homeopathic Hospital & College, Kolkata, India.
10. Vidyasagar Rural Hospital, Birsingha State Homoeopathic Dispensary, Under Department of Health & Family Welfare, Government of West Bengal, Ghatal, Paschim Medinipur, India.