Answer: Firozshah Tughlaq
Notes: Firoz Tughlaq (1351-86) is known to have laid one of the biggest network of canals known in India until the nineteenth century. A canal running to Hisar (Haryana) was fed by two canals cut from the Yamuna, the Rajabwah and the Ulughkhani. The Firozshahi was cut from the Sutlej. A canal ran from Kali river to fall into the Yamuna at Delhi, and another was cut from Ghaggar river in eastern Punjab. The area around Hisar is said to have been so well irrigated that the rabi harvest was added to the kharif.
