"This map of Shahjahanabad, what's now Old Delhi, was made in 1847. After the revolt of 1857 was suppressed by the British, large parts of the city were demolished. So much changed that this map is an invaluable look at that city as it was before the destruction of 1857" - Swapna Liddle, author, 'Shahjahanabad; Mapping a Mughal City' talks to Manjula Narayan about the exquisite administrative map of the city that's now in the British Museum and what it tells us about the old walled city, its neighbourhoods, its social life and individual citizens both aristocratic and ordinary.