 The double finial minaret was built in 1509 by <unk> al @-@ Ghuri . Sitting on a square base , the first shaft is octagonal , and four sides have a decorative keel arch , separated from the adjacent sides with two columns . The second shaft , separated from the first by a fretted balconies supported by muqarnas , is also octagonal and decorated with blue faience . A balcony separates the third level from the second shaft . The third level is made up of two rectangular shafts with horseshoe arches on each side of both shafts . Atop each of these two shafts rests a finial , with a balcony separating the finials from the shafts . 
