<Table> West Bokaro Coalfield <Tr> <Th_colspan="2"> Location </Th> </Tr> <Tr> <Td_colspan="2"> West Bokaro Coalfield Location in Jharkhand </Td> </Tr> <Tr> <Th> State </Th> <Td> Jharkhand </Td> </Tr> <Tr> <Th> Country </Th> <Td> India </Td> </Tr> <Tr> <Th> Coordinates </Th> <Td> 23 ° 48 ′ N 85 ° 45 ′ E ﻿ / ﻿ 23.800 ° N 85.750 ° E ﻿ / 23.800; 85.750 Coordinates: 23 ° 48 ′ N 85 ° 45 ′ E ﻿ / ﻿ 23.800 ° N 85.750 ° E ﻿ / 23.800; 85.750 </Td> </Tr> <Tr> <Th_colspan="2"> Owner </Th> </Tr> <Tr> <Th> Company </Th> <Td> Central Coalfields Limited </Td> </Tr> <Tr> <Th> Website </Th> <Td> http://ccl.gov.in/ </Td> </Tr> <Tr> <Th> Year of acquisition </Th> <Td> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Location </Th> </Tr> <Tr> <Td_colspan="2"> West Bokaro Coalfield Location in Jharkhand </Td> </Tr> <Tr> <Th> State </Th> <Td> Jharkhand </Td> </Tr>

When was west bokaro made a division of tata steel