The Khalji Revolution (1290 CE)
In 1290 CE, the Khalji chief Jalal-ud-din Firuz Khalji overthrew the last Slave Dynasty sultan (Muiz-ud-din Qaiqabad) and established the Khalji dynasty. Historians call this the "Khalji Revolution" because it ended the monopoly of purely Turkish central-Asian nobles over the Delhi Sultanate. The Khaljis were of Afghan-Turkish origin, and their rise opened the sultanate's top ranks to non-Turkish elements.
The term "revolution" is significant: it was not just a dynastic change but a social transformation in who could hold power. As noted in the Slave Dynasty article, the Chahalgani (Turkish nobles) had controlled sultans since Iltutmish. The Khalji takeover broke this pattern permanently.
Jalal-ud-din Khalji (1290–1296 CE)
Jalal-ud-din Firuz Khalji was about 70 years old when he became sultan — an unusually old age for a medieval ruler taking power. He was known for a relatively mild, conciliatory approach: he pardoned rebels, was reluctant to execute opponents, and tried to win over the Turkish nobility.
His most important legacy is providing the platform from which his nephew Alauddin Khalji launched his astonishing career. Alauddin conducted an unauthorised campaign against Devagiri (1296 CE) — the Yadava kingdom in the Deccan — capturing enormous wealth. He then used this wealth to bribe soldiers and had Jalal-ud-din assassinated at Kara (near Allahabad), seizing the throne.
Alauddin Khalji (1296–1316 CE)
Alauddin Khalji was the most powerful sultan in Delhi Sultanate history. He never lost a battle. His reign combined military genius, ruthless political control, and remarkable administrative innovation. He consulted no ulema (religious scholars) on governance and explicitly separated religion from state policy — a remarkably secular approach for a medieval Islamic ruler.
His key advisor and general was Malik Kafur, a eunuch slave purchased at Cambay (Gujarat) for 1,000 dinars — hence nicknamed "Hazar-dinari." Malik Kafur rose to become Alauddin's most trusted commander and led the landmark Deccan campaigns.
Military Campaigns
| Campaign | Year | Target / Outcome |
|---|---|---|
| Devagiri | 1296 | Yadava king Ramachandra Dev defeated; enormous tribute extracted; unauthorised by Jalal-ud-din |
| Gujarat | 1299 | Annexed; Malik Kafur and Nusrat Khan commanded; Somnath temple attacked; Malik Kafur acquired here |
| Ranthambore | 1301 | Chahamana chief Hammiradeva defeated and killed; fort taken |
| Chittor | 1303 | Rana Ratan Singh of Mewar defeated; Padmavati story (legendary, not historical); fort captured; renamed Khizrabad |
| Malwa | 1305 | Annexed |
| Devagiri (2nd) | 1307 | Ramachandra Dev re-conquered; accepted permanent Khalji suzerainty |
| Warangal | 1309–10 | Kakatiya king Prataparudra II defeated by Malik Kafur; enormous wealth including Koh-i-Noor (legendary claim) and Warangal Star |
| Dvarasamudra | 1311 | Hoysala king Ballala III defeated by Malik Kafur |
| Madurai / Ma'bar | 1311 | Pandya kingdom; Malik Kafur reached the southernmost point any Delhi Sultanate army reached |
Alauddin did not annex the Deccan kingdoms south of the Vindhyas into the Delhi Sultanate. He extracted tribute and submission. The southern kingdoms remained as vassal states, not directly administered territories. Only the Deccan Sultanate of Devagiri was more directly absorbed. Permanent annexation of the deep south was beyond his logistical reach.
Repulsion of Mongol Invasions
Alauddin's most strategically important achievement was successfully repelling five major Mongol invasions — more than any other Delhi sultan. The Mongols under the Chagatai Khanate posed an existential threat to North India.
| # | Year | Mongol Leader | Outcome |
|---|---|---|---|
| 1 | 1297–98 | Kadar Khan | Defeated near Jalandhar; 20,000 Mongols killed |
| 2 | 1298 | Saldi | Defeated near Sivistan (Sindh) |
| 3 | 1299 | Qutlugh Khwaja | 200,000-horse army reached Delhi outskirts; repelled in battle of Kili; Zafar Khan killed heroically |
| 4 | 1303 | Targhi | Invaded during Chittor siege; Alauddin retreated to Siri fort; Mongols withdrew |
| 5 | 1305–06 | Ali Beg & Tartaq | Decisive defeat at Amroha and Ravi; 50,000 Mongol prisoners taken, many executed |
The key to Alauddin's Mongol defence was his military-economic system: the market reforms allowed him to maintain a large, well-supplied army at low cost, while the revenue reforms ensured a constant flow of resources to the treasury.
Market Reforms — The Four Markets
Alauddin Khalji's market reforms are among the most extensively tested UPSC topics. He established four separate markets in Delhi with government-fixed prices:
| Market | Goods | Controller |
|---|---|---|
| Mandi (Grain market) | Foodgrains (wheat, rice, barley, pulses) | Shahana-i-mandi |
| Sarai Adl (Cloth market) | Cloth, horses, cattle | Shahana-i-mandi |
| Horse, cattle & slave market | War horses, cattle, slaves | Separate controller |
| General commodity market | All other goods | Shahana-i-mandi |
The administrative machinery of the markets:
- Shahana-i-mandi — Controller of Markets; fixed prices and supervised transactions
- Barid — official intelligence agents reporting on market activities
- Munhiyans — secret spies (independent of the Barids) checking compliance
- Diwan-i-Riyasat — the ministry overseeing market control
Violations were severe: a merchant who adulterated goods or charged more than the fixed price had an equivalent weight of flesh cut from his body. This extreme enforcement is described by Ziauddin Barani in the Tarikh-i-Firuz Shahi.
Revenue Reforms
Alauddin also radically reformed the land revenue system to maximise state income:
- Kharaj (land tax) raised to 50% of produce (half of the harvest) — up from the customary one-third
- Ghari — house tax on non-Muslims
- Charai — grazing tax on cattle
- Measurement (masaha) of all agricultural land introduced to calculate revenues accurately
- Revenue records maintained by village accountants (patwaris) under central supervision
- Abolished the revenue assignments (watan) of Hindu chiefs and zamindars — brought villages under direct state collection
Alauddin Khalji raised land tax to 50%. Under normal Delhi Sultanate practice it was one-third (1/3) or one-fourth. Alauddin's 50% was exceptional and designed to fund his military. UPSC options often give one-third as the Alauddin rate — this is wrong for Alauddin specifically.
Military Reforms
Alauddin organised the first large paid standing army directly under the sultan (not iqta-holders) in Delhi Sultanate history:
- Dagh system — branding of horses with the royal mark to prevent substitution of inferior horses by soldiers
- Chehra system — descriptive roll (photo-ID equivalent) of each soldier maintained to prevent ghost soldiers
- Fixed cash salaries — soldiers paid directly in cash (enabled by low market prices)
- Army size estimated at 475,000 cavalry
Alai Darwaza — First True Arch in India
Alauddin Khalji's most famous architectural work is the Alai Darwaza, completed in 1311 CE as the southern gateway of the Quwwat-ul-Islam mosque complex at Delhi.
| Feature | Fact |
|---|---|
| Builder | Alauddin Khalji |
| Year | 1311 CE |
| Significance | First building in India to use a true (keystone) arch and a true dome |
| Material | Red sandstone with white marble inlay |
| Style | Early Indo-Islamic; horseshoe arch; geometric and arabesque decoration; calligraphic bands |
| Location | Qutb complex, Mehrauli, Delhi |
Alauddin also planned a minar (tower) twice the height of the Qutb Minar (Alai Minar) but it was never completed — only the first storey was built before his death in 1316 CE.
The Delhi Sultanate Architecture article covers the full development of Indo-Islamic architectural styles from the Qutb Minar through Tughlaqabad.
📝 UPSC Prelims PYQ — 2020
With reference to Alauddin Khalji's administrative reforms, consider the following statements:
1. Alauddin Khalji set up four separate markets in Delhi with government-fixed prices, the grain market being called the Mandi.
2. The Shahana-i-mandi was the official responsible for overseeing all four markets and ensuring price compliance.
3. The primary purpose of the market reforms was to provide cheap food to the poor of Delhi.
Which of the statements given above is/are correct?
Statement 1: Correct. Four markets, grain market = Mandi.
Statement 2: Correct. The Shahana-i-mandi oversaw markets; supported by Barids (official spies) and Munhiyans (secret spies).
Statement 3: Incorrect. The primary purpose was military — to maintain a large, cheaply supplied army. It was not a welfare measure for the poor.
📝 UPSC Prelims PYQ — 2023
Consider the following statements about Alauddin Khalji's military achievements:
1. Alauddin Khalji repelled five major Mongol invasions of the Delhi Sultanate, more than any other Delhi sultan.
2. Malik Kafur was a Hindu general who converted to Islam and led the Deccan campaigns on Alauddin's behalf, reaching as far south as Madurai.
3. Alauddin permanently annexed all the Deccan kingdoms including the Pandya, Kakatiya and Hoysala kingdoms into the Delhi Sultanate as directly administered territories.
Which of the statements given above is/are correct?
Statement 1: Correct. Five major Mongol invasions repelled.
Statement 2: Correct. Malik Kafur was a eunuch slave (purchased at Cambay, Gujarat) who converted to Islam. He led the Deccan campaigns and reached Madurai / Ma'bar — the southernmost reach of Delhi Sultanate forces.
Statement 3: Incorrect. Alauddin did not permanently annex the southern Deccan kingdoms. He extracted tribute and submission but did not incorporate them as directly administered provinces. The Deccan kingdoms reverted to independence after Alauddin's death.
Frequently Asked Questions
What were Alauddin Khalji's four markets?
Four markets: (1) Mandi (grain); (2) Sarai Adl (cloth, horses, cattle); (3) Horse, cattle and slave market; (4) General commodity market. All had fixed government prices, supervised by Shahana-i-mandi, with Barids and Munhiyans as enforcement agents. Purpose was military cost reduction, not welfare.
How many Mongol invasions did Alauddin repel?
Five. The third (Qutlugh Khwaja, 1299) was the most dangerous — 200,000 horses reached the outskirts of Delhi. The fourth (Targhi, 1303) coincided with the Chittor siege, briefly putting Alauddin in difficulty. The fifth (1305–06) was the most decisively crushed.
What is the Alai Darwaza and why is it architecturally significant?
The Alai Darwaza (1311 CE), built by Alauddin Khalji at the Qutb complex, is the first building in India to use a true (keystone) arch and a true dome. Earlier Indian arches were corbelled (false arches). The Alai Darwaza marks the structural arrival of proper Islamic arch-and-dome construction in India.