From the archive record
Shams-ud-din Iltutmish was the third ruler of the Mamluk dynasty of Delhi of Turkic origin. He was a slave of Qutb-ud-din Aibak and later became his son-in-law and close lieutenant. He was the Governor of Badaun when he deposed Qutub-ud-din's successor Aram Shah and acceded to the throne of the Delhi Sultanate in 1211. He shifted Capital from Lahore to Delhi, remained the ruler until his death on May 1, 1236. Iltutmish introduced the silver tanka and the copper jital-the two basic coins of the Sultanate period, with a standard weight of 175 grains. He introduced Iqtadari system: division of empire into Iqtas, which were assigned to the nobles and officers in lieu of salary. He built the Hauz-i-Shamsi reservoir in Mehrauli in 1230, which also has Jahaz Mahal standing on its edge, used by la