Khaljis were vassals of the Mamluk dynasty of Delhi and served the Sultan of Delhi, Ghiyas ud din Balban, as a minor part of the Muslim nobility. The last major Turkic ruler, Balban, in his struggle to maintain power over his insubordinate Turkish officers, destroyed the power of the Forty. However this indirectly damaged the Turkish integrity of the nobility, which had opposed the power of the non-Turks. This left them vulnerable to the Khalji faction, which took power through a series of assassinations. One by one the Mamluk officers were murdered, and the last ruler of the Turkic Mamluk dynasty - the 17-year old Muiz ud din Qaiqabad - was killed in the Kailu-gheri Palace during the coup known as the Khalji Revolution by Jalal ud din Firuz Khalji.

Jalaluddin Firuz Khalji, who was around 70 years old at the time of his ascension, was known as a mild-mannered, humble and kind monarch to the general public.

Jalaluddin succeeded in overcoming the opposition of the Turkish nobles and ascended the throne of Delhi in January 1290. Jalal-ud-din was not universally accepted: during his six-year reign (1290–96), Balban's nephew revolted due to his assumption of power and the subsequent sidelining of nobility and commanders serving the Mamluk dynasty. Jalal-ud-din suppressed the revolt and executed some commanders, then led an unsuccessful expedition against Ranthambhor. Jalal-ud-din used an Afghan enclave in the suburb of Delhi, Kilokhri, as his de facto capital.

He also repelled several Mongol attacks on India and was successful in destroying a Mongol force on the banks of the Sind River in central India with the help of his nephew Juna Khan.

In a plot by his nephew, Jalaluddin was assassinated by Muhammad Salim of Samana, Punjab.

Alauddin Khalji was the nephew and son-in-law of Jalal-ud-din. He raided the Deccan peninsula and Deogiri - then the capital of the state of Maharashtra, looting their treasure. He returned to Delhi in 1296, murdered Jalal-ud-din and assumed power as Sultan. He would appoint his allies such as Zafar Khan (Minister of War), Nusrat Khan (Wazir of Delhi), Ayn al-Mulk Multani, Malik Kafur, Malik Tughlaq, and Malik Nayk (Master of the Horse).

At the beginning of his reign, defeated a major Mongol invasion, at the Battle of Jaran-Manjur (1298). The victory consolidated Alauddin's power and prestige, thus stabilizing his position on the throne of Delhi.

To secure a route to Gujarat's trading ports, Ayn al-Mulk Multani was sent to conquer the Paramara kingdom of Malwa. Its Rai defended it with a large Rajput army, but he was defeated by Multani who became the governor of the province.

Then in 1299 Nusrat Khan was sent to conquer Gujarat itself, where he defeated its Solanki king. Nusrat Khan plundered its chief cities and sacked its temples, such as the famous temple of Somnath which had been rebuilt in the twelfth century. It was here where Nusrat Khan captured Malik Kafur who would later become a military general. Alauddin continued expanding Delhi Sultanate into South India, with the help of generals such as Malik Kafur and Khusraw Khan, collecting large war booty (Anwatan) from those they defeated. His commanders collected war spoils from conquered kingdoms and paid khums (one fifth) on ghanima (booty collected during war) to Sultan's treasury, which helped strengthen the Khalji rule.

Alauddin Khalji reigned for 20 years. He conquered Rajputana, attacking and seizing the states of Jaisalmer (1299), Ranthambhor (1301), Chittorgarh (1303), Malwa(1305), he also conquered Gujarat and plundered the wealthy state of Devagiri during his raids in the south. He also withstood two Mongol raids. Alauddin was also known for his cruelty against attacked kingdoms after wars. Historians note him as a tyrant, and that anyone Alauddin Khalji suspected of being a threat to this power was killed, along with the women and children of that family. In 1298, between 15,000 and 30,000 people near Delhi, who had recently converted to Islam, were slaughtered in a single day, due to fears of an uprising. He also killed his own family members and nephews, in 1299–1300, after he suspected them of rebellion, by first gouging out their eyes and then beheading them.

In 1308, Alauddin's lieutenant, Malik Kafur captured Warangal, overthrew the Hoysala Empire south of the Krishna River and raided Madurai in Tamil Nadu. He then looted the treasury in capitals and from the temples of south India. Among these loots was the Warangal loot that included one of the largest known diamond in human history, the Koh-i-Noor. Malik Kafur returned to Delhi in 1311, laden with loot and war booty from Deccan peninsula which he submitted to Alauddin Khalji. This made Malik Kafur, born in a Hindu family and who had converted to Islam before becoming Delhi Sultanate's army commander, a favorite of Alauddin Khalji.

In 1311, Alauddin ordered a massacre of Mongols in the Delhi Sultanate wherein between 15,000 and 30,000 Mongol settlers, who had recently converted to Islam, were killed after Khalji suspected them of plotting an uprising against him.

Alauddin Khalji died in January 1316. Thereafter, the sultanate witnessed chaos, coup and succession of assassinations. Malik Kafur became the sultan but lacked support from the amirs and was killed within a few months.

Over the next three years following Malik Kafur's death, another three sultans assumed power violently and/or were killed in coups. First, the amirs installed a six-year-old named Shihab-ud-din Omar as sultan and his teenage brother, Qutb ud din Mubarak Shah, as regent. Qutb killed his younger brother and appointed himself sultan; to win over the loyalty of the amirs and the Malik clan he offered Ghazi Malik the position of army commander in the Punjab. Others were given a choice between various offices and death. After ruling in his own name for less than four years, Mubarak Shah was murdered in 1320 by one of his generals, Khusraw Khan. Amirs persuaded Ghazi Malik, who was still army commander in the Punjab, to lead a coup. Ghazi Malik's forces marched on Delhi, captured Khusraw Khan, and beheaded him. Upon becoming sultan, Ghazi Malik renamed himself Ghiyath al-Din Tughluq, becoming the first ruler of the Tughluq dynasty.

Alauddin Khalji changed the tax policies to strengthen his treasury to help pay the keep of his growing army and fund his wars of expansion. He raised agriculture taxes from 20% to 50% – payable in grain and agricultural produce (or cash), eliminating payments and commissions on taxes collected by local chiefs, banned socialization among his officials as well as inter-marriage between noble families to help prevent any opposition forming against him; he cut salaries of officials, poets and scholars in his kingdom.

Regarding the military, historians states the standing army of sultanate during Khilji dynasty consist of 300,000-400,000 horse cavalry and 2500-3000 war elephant. Which is smaller than its successor state, the Tughlaq dynasty, which recorded to possess a standing army of 500,000 cavalry.

Alauddin Khalji enforced four taxes on non-Muslims in the Sultanate - jizya (poll tax), kharaj (land tax), kari (house tax), and chari (pasture tax). He also decreed that his Delhi-based revenue officers assisted by local Muslim jagirdars, khuts, mukkadims, chaudharis and zamindars seize by force half of all produce any farmer generates, as a tax on standing crop, so as to fill sultanate granaries. His officers enforced tax payment by beating up middlemen responsible for rural tax collection. Furthermore, Alauddin Khalji demanded, state Kulke and Rothermund, from his "wise men in the court" to create "rules and regulations in order to grind down the common man, so as to reduce them to abject poverty and deprive them of wealth and any form of surplus property that could foster a rebellion; At the same time, he confiscated all landed property from his courtiers and officers. Revenue assignments to Muslim jagirdars were also cancelled and the revenue was collected by the central administration. Henceforth, state Kulke and Rothermund, "everybody was busy with earning a living so that nobody could even think of rebellion."

Alauddin Khalji taxation methods and increased taxes reduced agriculture output and the Sultanate witnessed massive inflation. In order to compensate for salaries that he had cut and fixed for Muslim officials and soldiers, Alauddin introduced price controls on all agriculture produce, goods, livestocks and slaves in the kingdom, as well as controls on where, how, and by whom these could be sold. Markets called shahana-i-mandi were created. Muslim merchants were granted exclusive permits and monopoly in these mandi to buy and resell at official prices. No one other than these merchants could buy from farmers or sell in cities. Alauddin deployed an extensive network of Munhiyans (spies, secret police) who would monitor the mandi and had the power to seize anyone trying to buy or sell anything at a price different from the official controlled prices. Those found violating these mandi rules were severely punished, such as by cutting out their flesh. Taxes collected in form of seized crops and grains were stored in sultanate's granaries. Over time, farmers quit farming for income and shifted to subsistence farming, the general food supply worsened in north India, shortages increased and Delhi Sultanate witnessed increasingly worse and extended periods of famines. The Sultan banned private storage of food by anyone. Rationing system was introduced by Alauddin as shortages multiplied; however, the nobility and his army were exempt from the per family quota-based food rationing system. During these famines, Khalji's sultanate granaries and wholesale mandi system with price controls ensured sufficient food for his army, court officials and the urban population in Delhi. Price controls instituted by Khalji reduced prices, but also lowered wages to a point where ordinary people did not benefit from the low prices. The price control system collapsed shortly after the death of Alauddin Khalji, with prices of various agriculture products and wages doubling to quadrupling within a few years.

The tax system introduced during the Khalji dynasty had a long term influence on Indian taxation system and state administration,

Alauddin Khalji's taxation system was probably the one institution from his reign that lasted the longest, surviving indeed into the nineteenth or even the twentieth century. From now on, the land tax (kharaj or mal) became the principal form in which the peasant's surplus was expropriated by the ruling class.

— The Cambridge Economic History of India: c.1200-c.1750,

Within Sultanate's capital city of Delhi, during Alauddin Khalji's reign, at least half of the population were slaves working as servants, concubines and guards for the Muslim nobles, amirs, court officials and commanders. Slavery in India during the Khalji dynasty, and later Islamic dynasties, included two groups of people - persons seized during military campaigns, and people who defaulted on their taxes. The institution of slavery and bondage labor became pervasive during the Khalji dynasty; male slaves were referred to as banda, qaid, ghulam, or burdah, while female slaves were called bandi, kaniz or laundi.

Alauddin Khalji is credited with the early Indo-Mohammedan architecture, a style and construction campaign that flourished during Tughlaq dynasty. Among works completed during Khalji dynasty, are Alai Darwaza - the southern gateway of Qutb complex enclosure, the Idgah at Rapri, and the Jamat Khana Masjid in Delhi. The Alai Darwaza, completed in 1311, was included as part of Qutb Minar and its Monuments UNESCO World Heritage site in 1993.

Perso-Arabic inscriptions on monuments have been traced to the Khalji dynasty era.

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  Alauddin Khalji's Madrasa, Qutb complex, Mehrauli, which also has his tomb to the south.
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  Courts to the east of Quwwat ul-Islam mosque, in Qutb complex added by Khalji in 1300 CE.
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  The unfinished Alai Minar
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  Window of Alai Darwaza.

Historians have questioned the reliability of historical accounts about the Khalji dynasty. Genuine primary sources and historical records from 1260 to 1349 period have not been found. One exception is the short chapter on Delhi Sultanate from 1302 to 1303 AD by Wassaf in Persia, which is duplicated in Jami al-Tawarikh, and which covers the Balban rule, start of Jalal-ud-din Chili's rule and circumstances of the succession of Alauddin Khalji. A semi-fictional poetry (mathnawi) by Yamin al-Din Abul Hasan, also known as Amir Khusrau, is full of adulation for his employer, the reigning Sultan. Khusrau's adulation-filled narrative poetry has been used as a source of Khalji dynasty history, but this is a disputed source. Three historical sources, composed 30 to 115 years after the end of Khalji dynasty, are considered more independent but also questioned given the gap in time. These are Isami's epic of 1349, Diya-yi Barani's work of 1357 and Sirhindi's account of 1434, which possibly relied on now lost text or memories of people in Khalji's court. Of these Barani's text is the most referred and cited in scholarly sources.

History of the Turkic peoples pre–14th century
Turkic peoples Onogurs Oghuz Turks Saragurs Utigurs Bulgars Sabir Kutrigurs Karluks Kimek Kipchaks Cherniye Klobuki Uyghurs Tatars Kumyks Yakuts Dolgans Krymchaks Crimean Karaites
Turkic Languages Turkish Azerbaijani Uzbek Kazakh Uyghur Turkmen Tatar Kyrgyz Bashkir Chuvash Qasgqai Karakalpak Sakha Kumyk Karachay-Balkar Tuvan Gagauz Karaim Krymchak
Turkic Mythology Belief system: Tengrism and Shamanism Chief gods and goddesses: Kayra and Ülgen Epics and heroes: Ergenekon and Asena Major concepts: Sheka and Grey wolf
Pre-14th century Yenisei Kyrgyz People 202 BCE–13th CE Yenisei Kyrgyz Khaganate Dingling 71 BC–?? AD Tiele (Gaoche) Göktürks First Turkic Khaganate 552–581 Western Turkic Khaganate 581–657 (Tokhara Yabghus, Turk Shahis) Eastern Turkic Khaganate 581–650 Second Turkic Khaganate 682–744 Sabiri People Khazar Khaganate 618–1048 Xueyantuo 628–646 Kangar Union 659–750 Turk Shahi 665-850 Türgesh Khaganate 699–766 Kimek–Kipchak Confederation 743–1035 Uyghur Khaganate 744–840 Oghuz Yabgu State 750–1055 Karluk Yabgu State 756–940 Kara-Khanid Khanate 840–1212 Western Kara-Khanid Eastern Kara-Khanid Ganzhou Uyghur Kingdom 848–1036 Qocho 856–1335 Pecheneg Khanates 860–1091 Ghaznavid Empire 963–1186 Seljuk Empire 1037–1194 Sultanate of Rum Cuman–Kipchak Confederation 1067–1239 Khwarazmian Empire 1077–1231 Kerait Khanate 11th century–13th century Atabegs of Azerbaijan 1136–1225 Delhi Sultanate 1206–1526 Mamluk dynasty Khalji dynasty Tughlaq dynasty Qarlughid Kingdom 1224–1266 Golden Horde 1242–1502 Mamluk Sultanate (Cairo) 1250–1517 Bahri dynasty Ottoman State 1299–1922
v t e

• Ikhtiyar Uddin Muhammad Bin Bakhtiyar Khalji
• Persianate society
• List of Sunni Muslim dynasties

• Media related to Khalji dynasty at Wikimedia Commons
• Khilji - A Short History of Muslim Rule in India I. Prasad, University of Allahabad
• The Role of Ulema in Indo-Muslim History, Aziz Ahmad, Studia Islamica, No. 31 (1970), pp. 1–13