Correct Answer: (4) Firoz tughlaq
Solution:Hisar was founded in 1354 AD, as 'Hisar-e-firoza by Firoz Shah Tughlaq, who reigned over the sultanate of Delhi from 1351 to 1388. He built a walled fort with four gates, the Delhi gate and Mort gate to the east, the nagori gate to the south, and the talaqt gate to the west.