His father was Sipahsalar Rajab, the brother of Ghiyath al-Din Tughluq, the founder of the dynasty, whilst his mother was a Bhatti taking origins in Abuhar, Dipalpur in the Punjab region.

[2] Firuz Shah has been accredited with the construction of numerous cities and irrigation projects and has been regarded as a great builder with the creation of Firozpur, Hisar and Fatehabad in the Punjab and Haryana regions.

[5] Ghiyath al-Din Tughluq sent a proposal of marriage to the Rai however he declined which led the Sultan to demand the payment of revenue for a year causing hardship to the people for three days until Bibi Naila heard the cries of her mother due to the severity caused by Ghiyath al-Din Tughluq and ultimately accepted his proposal.

When he was fourteen years of age, Ghiyath al-Din Tughluq succeeded the throne of Delhi and he travelled with the Sultan, learning the arts of public affairs.

Upon Muhammad bin Tughluq's succession to the throne, Firuz shah, now eighteen years of age, had assumed the rank of 'deputy of the lord chamberlain' (Naib-i Amir Hajib) with the title of Naib Barbak, commanding twelve thousand horses.

[9] Upon Muhammad bin Tughluq's death, Firuz Shah succeeded the throne on the 23rd March 1351 CE on the banks of Sindh.

Firuz upon hearing of this unanimously agreed with his nobles that Muhammad bin Tughluq had only one daughter and thence marched through Multan, Dipalpur and Ajodhan whilst gathering a large army of soldiers, nobles, and commoners from these cities for his march to Delhi, including thirty six Rajas of this neighbourhood, he also completed a pilgramage at the tomb of Baba Farid.

Like the first invasion Firuz had amassed an army of seventy thousand men and marched towards Bengal in 1358 CE, creating the city of Jaunpur named after the second sultan of the Tughlaq dynasty, Muhammad bin Tughluq along the way.

[19][20] On the return from Bengal, Firuz Shah was met with conflict from the Rai of Jajpur, modern day Odisha and in 1360 CE had invaded the region taking prisoners and spoils of war, such as horses and cattle, meanwhile the Rai of Odisha had surrendered and sued for peace promising an anual tribute of twenty elephants.

[24][25] The Nurpur kingdom based in Punjab and Himachal Pradesh under Kailas Pal(1353-1397 CE), who ruled alongside Firuz Shah, had been noted as a great ally of the Tughlaq dynasty.

[31] According to legends the Gujari Mahal situated in Hisar, Haryana is where the love story between Sultan Firoz Shah and his lover, a lady of the Gurjar tribe, took place.

[32][33][34] According to the story, when one day Emperor Firoz Shah Tughlaq went out for hunting he felt thirsty in the dense forest, but there was a great shortage of water there as the land there was sandy and uneven.

Tughlaq's reign has been described as the greatest age of corruption in medieval India: He once gave a golden tanka to a distraught soldier so that he could bribe the clerk to pass his sub-standard horse.

[45] Firoz Shah Tughlaq's reign was marked by both administrative reforms and aggressive religious policies aimed at consolidating Islamic rule in India.

A devout Muslim, he is known for his efforts to enforce Sharia law, which included widespread persecution of Hindus and destruction of their religious institutions.

[46] But Firuz Shah Tughlaq renovated Surya kund in the Dakshinaarka sun temple of Gaya and acknowledged its greatness.

Firoz Shah founded several cities around Delhi, including Jaunpur, Firozpur, Hissar, Firozabad, Fatehabad.

He brought two Ashokan Pillars from Meerut, and a Topra near Radaur in Yamunanagar district of Haryana, carefully cut and wrapped in silk, to Delhi in bullock cart trains.

[50] When the Qutb Minar was struck by lightning in 1368 AD, knocking off its top storey, he replaced them with the existing two floors, faced with red sandstone and white marble.