Firoz Shah Tughlag built maximum number of canals. Firoz Shah Tughlaq was a Sultan belonging to the Tughlaq Dynasty. He succeeded Muhammad-bin-Tughlaq, the wisest fool of India. Firoz Shah was a good ruler. Achievements of Firoz Shah Firoz Shah Tughlaq worked majorly for development of infrastructure in his kingdom. He built schools, hospitals, river canals, reservoirs, rest houses among other things. He also repaired the Qutub Minar which had been damaged by an earthquake. He established the Diwan-i-Khairat - office for charity He established the Diwan-iBundagan - department of slave He established Sarais (rest house) for the benefits of merchants and other travellers He adopted the Iqtadari framework He is known to establish four new towns, Firozabad, Fatehabad, Jaunpur and Hissar He established hospitals known as Darul-Shifa, Bimaristan or Shifa Khana He constructed canals from: Yamuna to the city of Hissar Sutlej to the Ghaggar Ghaggar to Firozabad Mandvi and Sirmour Hills to Hansi in Haryana