1. Department of Health & Family Welfare, Govt. of West Bengal Model Ayush OPD (Homoeopathy), State Homoeopathic Dispensary, Bagdogra Primary Health Centre, Darjeeling, West Bengal, India
2. Asst. Sec. (Tech) Erstwhile Central Council of Homoeopathy, Ministry of Ayush, Govt. of India, India
3. Dr B Borooah Cancer Institute, Population Based Cancer Registry, ICMR, Guwahati, Kamrup Metropilitan, Assam India
4. Statistician & Formerly attached with Central Council for Research in Homoeopathy, Ministry of Ayush, Govt. of India, New Delhi 110058, India
5. State Homoeopathic Dispensary, under Belakoba BPHC, Department of Health & Family Welfare, Govt. of West Bengal, India, Jalpaiguri, West Bengal, India
6. Metropolitan Homoeopathic Medical College & Hospital, Ramchandraour, Sodepur, Kolkata, West Bengal, India