Who built hauz-i Sultani or the “King’s Reservoir”?

One notable construction during this period was the Hauz-i-Sultani or the “King’s Reservoir”, which was built by Sultan Iltutmish in Delhi. It was a large water tank constructed to supply water to the growing population of the city. Such water reservoirs were essential for urban life, especially in areas with limited water sources, and they demonstrated the rulers’ concern for public welfare.