Correct Answer: (d) Firuz Shah Tughluq
Solution:The Public Works Department was primarily established by Firoz Shah Tughluq during the Sultanate period. It is said that he established 300 new cities. Fatehabad, Hisar, Firozpur, Jaunpur, Firozabad etc. are some of the main cities established by him. According to Firista, Firuz had also constructed 40 Mosques, 30 schools, 20 palaces, 100 Inns, 100 hospitals, five tombs, 100 public bathrooms, ten pillars and 150 bridges. He had converted the name Ikdala to Azadpur and Pandua to Firuzabad during his Bengal campaign. Malik Ghazi Shehana was the main architect in his empire. The policy of each building as per its expected expenditure was put in front of 'Diwan-i-Wajarat, only then the fund could be allowed on it.