<Tr> <Th> Portuguese East India Company </Th> <Td> 1628--1633 </Td> </Tr> <Tr> <Th_colspan="2"> British India (1612--1947) </Th> </Tr> <Tr> <Th> East India Company </Th> <Td> 1612--1757 </Td> </Tr> <Tr> <Th> Company rule in India </Th> <Td> 1757--1858 </Td> </Tr>

What did britain attempt to do in order to maintain its industrial monopoly