The city wall is terraced, and is of solid masonry, but of no great height, being in many parts not more than fourteen feet.
The battlements are loop-holed, and the merlins over the gateways and at certain places along the wall, are machicolated; while semi-circular bastions surmounted by towers, occur at each flanking angle, and at regular intervals along the works.
The wall is pierced with thirteen gateways, exclusive of a small postern wicket, and its total length is a little over six miles.
Besides these, there are the Jaffar, Khirki, Barapul, Mahmud and Roshan gates; as well as four others, now closed, the Khizri, Khadgar, Mada, and Kumhar.
It is similar to the Lahore Gate of Delhi’s Lal Quila (Red Fort).
Roshan gate is said to have been named after Aurangezeb’s sister Roshanara to whom the emperor was much attached and she remained his favorite friend and advisor.