1. Department of Humanities and Social Sciences, Senior Research Fellow Indian Institute of Technology (Indian School of Mines), Dhanbad, India
2. Medical Faculty- Demonstrator, Department of Physiology, Institute of Post Graduate Medical Education and Research, SSKM Hospital, Kolkata, India
3. Medical Faculty- Demonstrator, Department of Physiology, KPC Medical College & Hospital, West Bengal University of Health Sciences
4. Department of Humanities and Social Sciences, Indian Institute of Technology (Indian School of Mines), Dhanbad, India