<Tr> <Th> Formed </Th> <Td> 1851 </Td> </Tr> <Tr> <Th> Jurisdiction </Th> <Td> British India (1851 - 1947) Republic of India (From 1947) </Td> </Tr> <Tr> <Th> Headquarters </Th> <Td> Kolkata </Td> </Tr> <Tr> <Th> Agency executive </Th> <Td> <Ul> <Li> Dr Dinesh Gupta, DG, GSI </Li> </Ul> </Td> </Tr>

Where is the headquarters of geological survey of india located