Explanation:

After the death of Muhammad-bin-Tughlaq in 1351, Firoz Tughlaq had the unique distinction of being chosen as sultan by the nobles. He appointed Khan-i-Jahan Maqbal, a Telugu Brahmin convert as Wazir (prime minister). The wazir helped the Sultan in his administration and maintained the prestige of the Sultanate during this period.

After his accession, Firoz had to face the problem of preventing the disintegration of the Delhi Sultanate. He tried to safeguard his authority over north India instead of reasserting his authority over the Deccan and south India. He led two expeditions to Bengal but they were not successful. Bengal became free from the control of the Delhi Sultanate.

The reign of Firoz Tughlaq was more notable for his administration. He strictly followed the advice of the ulemas (theologians) in running the administration. As he was guided by the ulemas, he was intolerant towards Shia Muslims and Sufis. He treated Hindus as second-grade citizens and imposed Jiziya. In this respect, he was the precursor of Sikandar Lodi and Aurangazeb.

He increased the number of slaves by capturing the defeated soldiers and young persons. In his regime, the number of slaves increased to one lakh eighty thousand. When Firoz died in 1388 the struggle for power between the Sultan and the nobles started once again. His successors had to face the rebellion of the slaves created by Firoz Tughlaq.