Which medieval Delhi Sultan is credited with constructing a canal system taking off from the Yamuna river to supply water to his newly founded fortress city of Hissar-e-Firoza in modern Haryana?

💡 Solution & Explanation

Firoz Shah Tughluq was deeply interested in irrigation and infrastructure development in the region of Haryana where he founded the city of Hissar-e-Firoza in 1354 CE. He constructed an elaborate network of canals including the Rajwah canal system from the Yamuna river to irrigate arid tracts and supply water to his administrative headquarters. This initiative transformed the agrarian economy of the region during the fourteenth century.