1670, a minaret had fallen down after being struck by lighting. It was then repaired at a cost of around Rs. 58000. In 1820, some part of it was renovated by Sikandar Jah at a cost of Rs. 2 lakh. The Charminar was constructed at the intersection of the historical trade route that connects the city to international markets through the port city of Machilipatnam. The Old City of Hyderabad was designed with Charminar as its centrepiece. The city was spread around the Charminar in four different quadrants and chambers, segregated according to the established settlements. Towards the north of Charminar is the Char Kaman, or four gateways, constructed in the cardinal direction. Additional eminent architects from Persia were also invited to develop the city plan. The structure itself was intended to serve as a mosque and madrasa. It is of Indo-Islamic architecture style, incorporating Persian architectural elements. A sample of Charminar is said to have been created at Dabirpura/Nagaboli graveyard before the actual construction. Historian Masud Hussain Khan says that the construction of Charminar was completed in the year 1592, and that it is the city of Hyderabad which was actually founded in the year 1591. According to the book "Days of the Beloved", Qutb shah constructed the Charminar in the year 1589, on the very spot where he first glimpsed his future queen Bhagmati, and after her conversion to Islam, Qutb Shah renamed the city as "Hyderabad". Though the story was rejected by the historians and scholars, it became popular folklore among the locals. Qutb Shah was also among the early poets of Dakhani Urdu. While laying the foundation of Charminar, he performed the prayers in Dakhini couplets, which are recorded as follows: Structure The Charminar masjid is a square structure with each side being long. Each of the four sides has one of four grand arches, each facing a fundamental point that opens directly onto the street in front of it. At each corner stands an exquisitely shaped high minaret, with a double balcony. Each minaret is crowned by a bulbous dome with dainty, petal-like designs at the base. Unlike the minarets of Taj Mahal, Charminar's four fluted minarets are built into the main structure. There are 149 winding steps to reach the upper floor. The structure is also known for its profusion of stucco decorations and the arrangement of balustrades and balconies. The structure is made