1. Department of Geography, Chandrapur College
2. Department of Geography, The University of Burdwan, Purba Barddhaman, West Bengal, India
3. Centre-in-Charge, District Spatial Data Centre, Office of the District Magistrate, Cooch Behar, India
4. Senior Research Fellow, Department of Geography, University of Kalyani, Nadia, India
5. Department of Geography, Kalipada Ghosh Tarai Mahavidyalaya, Bagdogra, Siliguri, India