<Table> <Tr> <Th_colspan="2"> Old Fort </Th> </Tr> <Tr> <Td_colspan="2"> Purana Qila Ramparts and lake </Td> </Tr> <Tr> <Th> Location </Th> <Td> Delhi, India </Td> </Tr> <Tr> <Th> Coordinates </Th> <Td> Coordinates: 28 ° 36 ′ 36" N 77 ° 14 ′ 42" E ﻿ / ﻿ 28.610 ° N 77.245 ° E ﻿ / 28.610; 77.245 </Td> </Tr> <Tr> <Th> Built </Th> <Td> 16 century CE </Td> </Tr> <Tr> <Th> Built for </Th> <Td> Sher Shah Suri </Td> </Tr> <Tr> <Th> Original use </Th> <Td> Fortress </Td> </Tr> <Tr> <Td_colspan="2"> Purana Qila in Delhi Purana Qila (India) Purana Qila (Asia) Purana Qila (Earth) Show map of Delhi Show map of India Show map of Asia Show map of Earth Show all </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Old Fort </Th> </Tr>

Where was the work of purana qila started