भविष्य पुराणनि मथै इन्द्रप्रस्थनि राजा पृथ्वीराजा गावनि रायजोनि गासै मोनब्रै माहारिफोरनि सुबिदाफोरनि थाखाय पुराना किला हालामाव मोनसे गोदान दुर्ग लुदोंमोन।
According to the Bhavishya Purana, King Prithiviraja of Indraprastha built a new fort in the modern-day Purana Qila area for the convenience of all four castes in his kingdom.