1. Department of Geography, University of Calcutta, Kolkata 700019, India
2. Q-Step Centre, School of Social Policy, Sociology and Social Research (SSPSSR), University of Kent, Canterbury, Kent CT2 7NF, UK
3. UGC-Human Resource Development Centre (HRDC) (UGC-HRDC), University of Calcutta, Kolkata 700009, India
4. Institute of Geographical Sciences, Physical Geography, Freie Universität Berlin, Malteserstr. 74-100, 12249 Berlin, Germany