Who among the following was NOT a ruler of the Tughlaq dynasty?

Rukunuddin Tughlaq

The correct answer is Option 2- Rukunuddin Tughlaq.

Rukunuddin Tughlaq was a ruler of the Delhi Sultanate for less than seven months in 1236. He belongs to the Slave dynasty.

The Tughlaq dynasty was founded by Ghiyasuddin Tughlaq in 1320. He was succeeded by his son, Muhammad-bin-Tughlaq. Muhammad-bin-Tughlaq was a brilliant scholar and administrator, but he also made some controversial decisions, such as the shifting of the capital from Delhi to Daulatabad and the introduction of token currency.

Muhammad-bin-Tughlaq was succeeded by his nephew, Firuz Shah Tughlaq. Firuz Shah Tughlaq was a benevolent ruler who focused on promoting agriculture and trade. He also built several public works projects, such as canals, bridges, and mosques.

The Tughlaq dynasty declined after the death of Firuz Shah Tughlaq in 1388. The last ruler of the Tughlaq dynasty was Mahmud Shah Tughlaq, who was overthrown by Timur in 1398.