Answer: Ministry of Mines
Notes: The Geological Survey of India (GSI) is celebrating its 175th year of geoscientific legacy. It was established in 1851 by Sir Thomas Oldham to locate coal deposits for the Railways. GSI provides geological expertise for policy-making, commercial, and socio-economic needs. It documents geological processes across India's land and offshore areas. The organization conducts geological, geophysical, and geochemical surveys with advanced techniques. Its primary functions include updating geoscientific data and assessing mineral resources. GSI operates under the Ministry of Mines as an attached office.
