Geological Survey of India The Geological Survey of India (GSI ) was set up in 1851 primarily to find coal deposits for the Railways. Over the years, GSI has not only grown into a repository of geo-science information required in various fields in the country but has also attained the status of a geo-scientific organisation of international repute. Its main functions relate to creating and updating of national geoscientific information and mineral resource assessment. These objective
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