Completed in 1781 to serve as an impregnable fort at Maidan, Fort William, named after King William III, now serves as the Military Head quarters of the Eastern Command, which can accommodate a garrison of 10,000 men and has huge green expanse giving lung space to a chocked city. After the events of 1756, the British decided there would be no repetition of the attack on the city and set out to replace the original Fort William.
First they cleared out the inhabitants of the village of Govindpur and in 1758 laid the foundations of a fort, which was completed in 1781 at an expense of 2 million British pounds. The fort is still in use today and visitors are allowed inside only with special permission. The area cleared around Fort William became the Maidan, the lungs of modern Calcutta, stretching 3 km north to south and is over a km wide.