1. Department of Geography, Cooch Behar Panchanan Barma University, Cooch Behar, West Bengal, India
2. Department of Geography, Dinhata College, Dinhata, West Bengal, India
3. Department of Geography, School of Human and Environmental Sciences, North-Eastern Hill University, Shillong, Meghalaya, India
4. Department of Geography and Applied Geography, University of North Bengal, Darjeeling, West Bengal, India