5th Floor, GHRM Centre, Dharitri Building, Geological Survey of India GN-40, Sector-V, Salt Lake, Kolkata-700091
nlfc.ghrm@gsi.gov.in dir.ghrm.landslide@gsi.gov.in nmh4@gsi.gov.in ddg.m4a@gsi.gov.in
https://www.gsi.gov.in/