### Theory:

Ghiyassudin Tughlaq: (1316 - 1325)
The Tughlaq dynasty was established under Ghiyassudin tughlaq whose ultimate concern was to recover the areas that he had lost during his feud with Alauddin khalji. He later sent his son Jauna khan to conquer Warangal where he defeated Prabutabutra and plundered Warangal.
Tughlaq Nama: This book deals with the ascendence of Ghiyasuddin tughlaq, which was written by Amir Khusrau.
Ghiyassudin was the first Sultan to begin Irrigation. He later laid the foundation stone for Tughlaqabad adjacent to Delhi, with the booty acquired from Warangal. Like the repeating pages of history, Jauna khan killed his father and ascended the throne in $$1325$$.
Jauna khan: known to be the son of Ghiyassudin tughlaq, killed him to acquire the throne under the titular name of Mohammad-bin-tughlaq.
Muhammad-bin-tughlaq is a complexion of learned knowledge and touch of cruel thoughts, thus his period witnessed the beginning of the disintegration of the dynasty.

Unlike his predecessors, he wanted the entire subcontinent under his control. He shifted his capital from Delhi to Devagiri to facilitate the extension of sovereignty.

Later renamed Devagiri as Daulatabad, after some time realising his mistake he returned to Delhi and made it his capital, the return to Delhi was due to the lack of water supply in Deccan. During his return, the city wore a deserted look with minimum population.
Khorasan Project: Mohammad began to strengthen his empire to withstand the adversary of Chinese invaders so he launched a project named Khorasan Project in Kumaon Hills.
6. A new sultanate named Bahmani emerged in the south of Tughlaq's empire which took control of the southern territories. Mohammad-bin-Tughlaq later died in $$1351$$.