Chronology of Kings: The Delhi Sultanate | History for UPSC CSE PDF Download

The Delhi Sultanate was an Islamic empire based in Delhi that stretched over large parts of the Indian subcontinent for 320 years (1206-1526). There was a total of five dynasties that ruled over the Delhi Sultanate sequentially: the Mamluk dynasty (1206-1290), the Khalji dynasty (1290-1320), the Tughlaq dynasty (1320-1414), the Sayyid dynasty (1414-1451), and the Lodi dynasty (1451-1526). At different times, large parts of northern India and parts of the Deccan were ruled by the Delhi Sultanate., sometimes even stretching out to modern-day Pakistan, Bangladesh as well as some parts of southern Nepal. Delhi Sultanate has had a deep impact on the country's culture and geography, covering large swathes of territory in modern-day India.

What was the Delhi Sultanate?

Delhi Sultanate 

The establishment of sustained Islamic rule in parts of the Indian subcontinent began earlier with the Arab conquest of Sind in 712 CE by Muhammad bin Qasim, but the most consequential phase for northern India began with invasions from Central Asia in the 12th century. The campaigns of Muhammad of Ghor (Muhammad Ghori) and his generals led to the foundation of a new polity centred on Delhi.

• Muhammad Ghori invaded the Indian subcontinent repeatedly in the late 12th century and fought two major battles at Tarain against the Rajput ruler Prithviraj Chauhan. He was defeated in the first battle but defeated Prithviraj in the second, paving the way for Turkic rule in northern India.
• After Muhammad Ghori's death in 1206 CE his Indian territories were left in the hands of his slave-generals. One such general, Qutb al-Din Aibak, established an independent rule in Delhi. This beginning is conventionally dated as the start of the Delhi Sultanate.
• The Sultanate was not a single continuous dynasty but a sequence of five major ruling houses: the Mamluk (Slave) or Ilbari dynasty, the Khalji dynasty, the Tughlaq dynasty, the Sayyid dynasty and the Lodi dynasty. Collectively they ruled from 1206 to 1526 CE.

Chronology of Kings: Main dynasties (1206-1526)

The Sultanate of Delhi (1206-1526) was ruled sequentially by five dynasties:

The Mamluk / Ilbari (Slave) dynasty (1206-1290)

The first dynasty of the Sultanate is commonly called the Mamluk or Slave dynasty and is sometimes referred to as the Ilbari dynasty in older accounts. It was founded by former slave commanders who became rulers. The dynasty established the basic administrative framework of the Sultanate, consolidated control over north India and promoted early Indo-Islamic architecture.

The Khalji dynasty (1290-1320)

The Khaljis were of Turkic origin and came to power in 1290 CE. Under rulers such as Jalaluddin Khalji and his nephew Ala-ud-Din Khalji the Sultanate became more centralised and embarked on vigorous military expansion into the Deccan and western India. The Khalji period saw significant economic and military reforms intended to maintain a large standing army and to control the nobility.

The Tughlaq dynasty (1320-1414)

The Tughlaqs came to power in 1320 CE. Founded by Ghazi Malik (Ghiyasuddin Tughlaq), the dynasty produced several notable rulers including Muhammad bin Tughlaq and Firoz Shah Tughlaq. The period is known for ambitious administrative experiments, large building projects, military campaigns and also for political fragmentation towards its later phase.

The Sayyid dynasty (1414-1451)

The Sayyids ruled from 1414 to 1451 CE. They claimed descent from the Prophet's family (the Sayyids) and their rule was comparatively short and politically weak. The Sayyid period was marked by regionalisation of power and challenges from powerful nobles and provincial governors.

The Lodi dynasty (1451-1526)

The Lodis were the last dynasty of the Sultanate and were of Afghan origin. They extended authority from Punjab to Bihar and are credited with public-works such as roads and irrigation projects. The Lodi rulers confronted growing challenges from regional powers and internal factionalism; the dynasty ended with the defeat of Ibrahim Lodi at Panipat (1526), which opened the way for Mughal conquest.

Information about prominent rulers

(A) Qutbuddin Aibak (1206-10)

Qutub-ud-din Aibak

• Founding the dynasty: Aibak, a former slave and general of Muhammad of Ghor, became the first ruler of the Delhi Sultanate after Ghori's death, founding the Slave (Mamluk) dynasty.
• Political challenges: After Ghori's death Aibak faced rivals such as Taj al-Din Yalduz (Mangabarni) and Nasiruddin Qabacha; through military action and alliances he consolidated authority in the north-west and Delhi region.
• Reputation and title: He was known for his generosity and was nicknamed "Lakhbaksh" (giver of lakhs [100,000s]).
• Architectural legacy: He began construction of the Qutub Minar complex at Delhi and patronised early Indo-Islamic monuments; the Qutub Minar was later completed by Iltutmish.
• Death: Aibak died in c. 1210 CE from an accident while playing chaugan (polo), leaving the early Sultanate to be consolidated by his successors.
• Cultural note: Turkic artisans and craftsmen introduced new decorative styles-geometric and floral motifs and inscriptions-into north Indian architecture.

Shams al-Din Iltutmish (r. 1211-1236)

Iltutmish 

• Background and rise: Iltutmish was originally a slave who rose through service to become ruler. He was related to Aibak by marriage and established his own authority by defeating rivals and consolidating territories.
• Military and territorial consolidation: He defeated claimants like Yalduz and Qabacha, regained control over Bengal and Bihar and checked incursions by local chiefs, stabilising the Sultanate.
• International recognition: He secured investiture from the Abbasid Caliph, which provided religious legitimacy to his rule.
• Administrative innovations: He introduced currency reforms, issuing the silver tanka and organising military and administrative elites, notably institutionalising the Turkan-i-Chahalgani (the "Forty" powerful nobles).
• Architectural work: He completed work on the Qutub Minar complex and patronised mosque and tomb construction in the early Indo-Islamic style.
• Succession: Iltutmish's choice of successors and the role of powerful nobles shaped later succession disputes and political instability.

Razia Sultan (1236-1240)

Raziya Sultan

• Significance: Razia (Raziyya) Sultan was the only woman to rule Delhi as Sultan in medieval times. Her accession broke convention and she is an important figure in the Sultanate's political history.
• Style of rule: She challenged social norms, appearing unveiled in court, participating in hunting and military leadership, and appointing officers on merit rather than strictly along ethnic lines.
• Opposition: Her appointment of non-Turkic and Abyssinian officers, notably Malik Jamal-ud-Din Yaqut, provoked resentment among the Turkish nobility and led to conspiracies against her.
• Downfall: Noble revolts led to her temporary capture and the enthronement of a puppet ruler. After an alliance and marriage with the rebel Altunia, she attempted to return to power but was defeated and killed while attempting to reach Delhi.

Ghiyas ud-Din Balban (1266-1287)

Balban

• Regency and authority: Balban first served as a powerful minister and regent; his experience led him to strengthen central authority when he became Sultan.
• Monarchical ideology: He promoted the idea of a strong, almost sacral kingship-asserting that the Sultan was divinely appointed-and enforced strict court etiquette to elevate royal prestige.
• Measures against nobles: To curb the power of the nobility (including the Turkan-i-Chahalgani), he used surveillance, a spy network and harsh punishments for rebels.
• Military and administration: He organised a central army, revived revenue institutions and established the Diwan-i-Arz (department of military affairs).
• Challenges: Despite his efforts Balban faced constant threats from Mongol raids and from rebellious provincial governors; his son died fighting in one such conflict.

Ala-ud-Din Khalji (1296-1316)

 Ala-ud-din Khalji

• Conquests: Ala-ud-Din led extensive campaigns that brought regions such as Gujarat, Ranthambhor, Chittor, Malwa, Deogiri (Devagiri) and Warangal under control; his general Malik Kafur led further expeditions into the Deccan.
• Military reforms: He introduced strict military measures to control and maintain a large standing army: the dagh (branding of horses), the chehra (roll or list of soldiers), regular mustering and strict wage systems.
• Economic and revenue reforms: He increased land revenue assessments, curtailed grants to nobles, set up an efficient revenue machinery and regulated markets to prevent hoarding and price rises.
• Administration: Centralisation under Ala-ud-Din aimed to reduce noble autonomy and keep the army directly under the Sultan's control.
• Social and political context: His rule impacted the social fabric by curbing the power of traditional elites and by institutionalising tighter state control over economy and society.

Muhammad bin Tughlaq (1325-1351)

Muhammad-bin-Tughlaq

• Intellect and ambition: Muhammad bin Tughlaq was a highly educated and intellectually curious ruler noted for bold reformist ideas and experiments, many of which failed in practice.
• Capital transfer: He attempted to transfer the capital from Delhi to Daulatabad (in central India), a project that involved forced marches of the populace and resulted in hardship, desertions and loss of life; the plan was eventually abandoned.
• Token currency experiment: He introduced token copper currency as a substitute for silver currency, but forgery and lack of acceptance led to financial disruption and the scheme was withdrawn.
• Taxation and agrarian policy: To meet fiscal needs he increased revenue demands in regions such as the Doab, which, combined with famine, provoked revolts.
• Agricultural initiatives: He attempted to stimulate cultivation through state credit (takkavi loans) and state farms; these measures had limited success.
• Political consequences: His costly experiments and the breakdown of central authority encouraged the rise of independent regional states (for example in the Deccan and south India). His reign ended amid widespread rebellions.
• Cultural note: He maintained diplomatic and intellectual contacts with travellers and scholars - the traveller Ibn Battuta visited his court and recorded contemporary events.

Firoz Shah Tughlaq (1351-1388)

Firuz Tughlaq 

• Ascension and focus: After Muhammad bin Tughlaq's death, Firoz Shah was chosen by leading nobles; he focussed on consolidation in the north rather than aggressive southern expansion.
• Administrative changes: He revived and made more hereditary elements of the iqta system (land grants in exchange for military service) and relied on ulema (religious scholars) for legitimacy.
• Public works: He constructed canals, improved irrigation, founded towns, patronised agriculture and established royal workshops and factories.
• Social and welfare measures: Institutions such as Diwan-i-Khairat were created to support the poor and travellers; he also patronised scholars and compiled works in Persian.
• Military and cultural aspects: His campaigns yielded plunder in some regions, and he transported artisans and objects to enrich his capitals; his long reign, however, ended with succession struggles and rising factionalism.

Sikandar Lodi (1489-1517)

 Sikander Lodi

• Military expansion: Sikandar Lodi was one of the more successful Lodi rulers, extending control into Bihar and defeating several regional chiefs; he forced a treaty with Bengal after military action.
• Administration and public works: He promoted agricultural welfare, constructed roads and irrigation works, reformed measurement and accounting systems (for example the Gaz-i-Sikandari), and encouraged law and order.
• Religious policy: His rule also saw episodes of religious intolerance: temple destructions and the re-imposition of special taxes on non-Muslims (jizya) are recorded by contemporary sources.
• Urban foundation and culture: He is credited with developing and partly founding the city of Agra (early 16th century) and he wrote Persian poetry under a pen-name, indicating cultural patronage.

Key institutions, terms and administrative measures

• Iqta: A system in which revenue assignments were granted to nobles and officers in return for administrative and military services; these assignments were not private property. Under different rulers the nature of iqtas (temporary or hereditary) varied.
• Turkan-i-Chahalgani (The Forty): A powerful group of military nobles who played a decisive role in politics in the early Sultanate; their influence often challenged the Sultan's authority.
• Tanka: A silver coin introduced and standardised as part of medieval monetary reforms.
• Dagh and Chehra: Administrative measures introduced to control and organise the army: horse-branding (dagh) and maintaining lists of soldiers (chehra) to prevent ghost soldiers and ensure payment to actual troops.
• Token currency experiment: Muhammad bin Tughlaq's attempt to issue copper token coins alongside silver/gold to ease currency shortage; it failed due to forgery and lack of public trust.
• Capital transfer: The forcible and temporary move of the capital to Daulatabad by Muhammad bin Tughlaq is an example of a bold policy that proved unworkable in the face of geographic and logistic realities.

Impact and legacy of the Delhi Sultanate

• Political: The Sultanate introduced centralised multi-regional rule with an organised military and revenue system that influenced later polities, including the Mughals.
• Cultural and social: Persian language and administrative practices became dominant in courts; Indo-Islamic architecture and new art forms emerged through patronage of mosques, tombs and public works.
• Economic: Trade, both internal and long-distance, grew in importance; administrative reforms in revenue and markets affected agrarian relations and urban commerce.
• Fragmentation and regionalisation: Repeated military pressures, fiscal strain and the rise of provincial powers during the later Sultanate period contributed to political fragmentation and the emergence of successor regional states.
• Path to Mughal period: The decline of the Lodi dynasty and the Battle of Panipat (1526) led to the establishment of Mughal rule, which absorbed and reconfigured many Sultanate institutions.

The history of the Delhi Sultanate is therefore a complex mix of military expansion, administrative experimentation, cultural exchange and political fragmentation. Its rulers-Turkic, Afghan and other elites-left a layered legacy in governance, architecture, language and society that shaped the medieval subcontinent.