The Seven Cities of Delhi
used as a watch-tower, or have formed part of the Palace of a Thousand Pillars; or, again, it may have been the building into the foundation of which many Moghal skulls were built, and have been a tower of Victory. But this is only speculation, and its original use will probably never be known.
SHRINE OF KHWAJA NIZAM-UD-DIN AULIA.—This group of buildings belongs to the time when Siri and Tughlukabad were being built, and is in the environs of the former, so will be described here.
In 1303 a great horde of Moghals, under Tarma Shirin, invested Delhi for some months, but suddenly broke up their camp, and retired. It was supposed that this was due to the efficacy of the prayers of this saint. He was the disciple of one Farid-ud-din, who was a disciple of Kutb-ud-din, who, in his turn, was the disciple of the famous saint of Ajmere, Muin-ud-din; his claim to saintliness was, therefore, a strong one. In these days, he is considered the greatest of them all. His differences with Tughlak Shah have already been mentioned; when Nizam-ud-din heard that the king was coming to chastise him, he calmly said, "Dilli hinoz dur ast" (" Delhi is yet a long way off ")—words which have become
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