Purana Qila (lit. 'Old Fort') is one of the oldest forts in Delhi, India. Built by the second Mughal Emperor Humayun and Surid Sultan Sher Shah Suri, it is thought by many to be located on the site of the ancient city of Indraprastha. The fort formed the inner citadel of the city of Dinpanah. It is located near the expansive Pragati Maidan exhibition ground and is separated from the Dhyanchand Stadium by the Mathura Road, Delhi.