History
Early Medieval India
Arab and Turkish Invasions
CGPSC notes on the Arab conquest of Sindh (712), Mahmud of Ghazni's raids, Muhammad Ghori, Tarain and Chandawar, and why the Indian kingdoms lost.
Prerequisites
- Rajput Kingdoms — the Chauhans, Gahadavalas, Solankis and Chandelas who faced the invaders
- The Tripartite Struggle — why the Pratiharas, once the shield against the Arabs, were gone by 1000
The Hook: Two Battles on the Same Field
Connect
Tarain (तराइन), near Thanesar in today’s Haryana, saw two battles a year apart. In 1191, Prithviraj Chauhan routed Muhammad Ghori, who was wounded and carried off the field. In 1192, Ghori returned with a reorganised army, and Prithviraj was defeated and killed.
What changed in one year? And why did kingdoms that had held back the Arabs for centuries give way to the Turks within a generation, while far to the south-east, the Kalachuri kingdom of Ratanpur in Chhattisgarh carried on largely untouched?
Why it matters: Prelims tests sequences and pairs (712, 1025–26, 1178, 1191, 1192, 1194; Mahmud’s scholars). Mains P-III asks for the causes of Rajput defeat and the consequences of the Turkish conquest, the bridge to the Delhi Sultanate.
Phase 1: The Arabs in Sindh (8th century)
| Point | Detail |
|---|---|
| Background | The Arab (Umayyad) caliphate had reached Persia and Makran. Sindh was ruled by Raja Dahir (दाहिर), son of Chach, from Alor (Aror) |
| Pretext | Pirates near Debal seized ships carrying gifts and Muslim travellers; Dahir refused redress |
| Commander | Muhammad bin Qasim, a young general sent by Hajjaj bin Yusuf, governor of Iraq |
| Campaign (712) | Took Debal by storm; crossed the Indus; defeated and killed Dahir at Raor; took Brahmanabad, Alor and then Multan |
| End | Muhammad bin Qasim was recalled and executed within a few years after a change of caliph |
| Source | Chachnama, a 13th-century Persian translation of an earlier Arabic account |
Why the Arabs did not go further:
- In the 730s, Arab raids from Sindh into Rajasthan, Gujarat and Malwa were turned back by the Pratihara Nagabhata I, the Chalukya feudatory Avanijanashraya Pulakeshin in Gujarat, and other kings.
- Sindh was far from the caliphate’s centre, and the Arabs’ interests turned to trade. The Rashtrakutas even welcomed Arab merchants.
Consequences: Politically small; culturally significant. Indian learning travelled to Baghdad: works on astronomy (Brahmagupta’s work, known in Arabic as Sindhind), mathematics (the place-value numerals the West later called “Arabic numerals”) and medicine were translated into Arabic.
Phase 2: The Ghaznavids (late 10th–11th century)
Background: Alptigin, a Turkish slave-commander of the Samanids, set up an autonomous kingdom at Ghazni (Afghanistan) in the 960s. His successor Sabuktigin defeated the Hindushahi king Jayapala, whose kingdom stretched from Kabul to Punjab.
Mahmud of Ghazni (r. 998–1030)
- Used the title Sultan and claimed the recognition of the Abbasid caliph.
- Traditionally credited with 17 raids on India, between 1000 and 1027.
| Raid / event | Detail |
|---|---|
| 1001, near Peshawar | Defeated Jayapala (Hindushahi), who afterwards immolated himself |
| 1008–09 | Defeated Anandapala (Hindushahi); sacked Nagarkot (Kangra) |
| 1018 | Mathura and Kannauj; the Pratihara king Rajyapala fled |
| 1019–1022 | Campaigns against the Chandela Vidyadhara (Kalinjar) without a decisive result |
| 1025–26 | Somnath (Gujarat). Mahmud set out in late 1025; the temple was sacked in January 1026. The Chaulukya king Bhima I had fled his capital |
| 1027 | Last expedition, against the Jats of the Sindh–Punjab region |
Nature of the raids: Mahmud wanted wealth (temple treasure) to fund his wars in Central Asia, and the prestige of a ghazi. He did not try to build an Indian empire: only Punjab (with Lahore) and Multan were annexed. Lahore became the Ghaznavid base in India for over a century.
Scholars at Mahmud's court
| Scholar | Work |
|---|---|
| Alberuni (अल-बिरूनी) | Kitab-ul-Hind (Tahqiq ma li-l-Hind), a detailed study of Indian religion, philosophy, astronomy, caste and customs. He learned Sanskrit. He criticised the insularity of Indian scholars of his time, who he felt believed no other country had knowledge |
| Firdausi | Shahnama, the Persian epic of the kings of Iran |
| Utbi | Tarikh-i-Yamini, a history of Sabuktigin and Mahmud |
Phase 3: The Ghurids (late 12th century)
Background: The Ghurids of Ghur (central Afghanistan) overthrew the Ghaznavids. Muizzuddin Muhammad bin Sam, known in India as Muhammad Ghori (also Shihabuddin), led the Indian campaigns while his brother ruled at Ghazni. Unlike Mahmud, Ghori aimed at permanent conquest.
timeline
title Muhammad Ghori in India
1175 : Takes Multan
1178 : Defeated at Kasahrada near Mount Abu by Chaulukya Mularaja II
1186 : Takes Lahore, ending Ghaznavid rule in Punjab
1191 : First Battle of Tarain - Prithviraj III wins
1192 : Second Battle of Tarain - Ghori wins
1194 : Battle of Chandawar - Jayachandra Gahadavala killed
1206 : Ghori assassinated; Qutbuddin Aibak begins the Delhi Sultanate| Event | Detail |
|---|---|
| Kasahrada, 1178 | Ghori tried the Gujarat route through the desert and was routed by the Chaulukya Mularaja II, whose mother Naikidevi was regent. He never invaded Gujarat again and switched to the Punjab route |
| First Battle of Tarain, 1191 | Prithviraj III won; according to the chroniclers, Ghori was wounded by Govinda Raja, the Chauhan governor of Delhi, and carried off the field |
| Second Battle of Tarain, 1192 | Ghori returned with a larger, better-organised army of mounted archers, used feigned retreats and flank attacks, and won. Prithviraj was captured and killed. Ajmer and Delhi fell open |
| Chandawar, 1194 | On the Yamuna (near Etawah–Firozabad). Jayachandra (Jaichand), the Gahadavala king of Kannauj, was defeated and killed. The Ganga valley lay open |
| Qutbuddin Aibak | Ghori’s slave-general left in charge of the Indian conquests; took Kalinjar from the Chandelas (1203) |
| Bakhtiyar Khalji | Raided Bihar around 1200 (dated variously in the 1190s–1200s), sacking Buddhist monasteries including Nalanda, Vikramashila and Odantapuri; around 1204 took Nadia in Bengal, from which the Sena king Lakshmana Sena fled |
| 1206 | Ghori was assassinated on his way back from Punjab. Aibak became the first ruler of the Delhi Sultanate |
Romance vs record
The story of Jaichand inviting Ghori to avenge the elopement of his daughter Samyogita with Prithviraj comes from the Prithviraj Raso and folk tradition. Historians treat it as legend, not established fact. In an exam, stick to the battle facts.
Why Did the Indian Kingdoms Lose? (Mains core)
| Factor | Explanation |
|---|---|
| Political fragmentation | No paramount power after the Pratiharas. Rajput states fought each other: Prithviraj had fought the Chandelas and the Gahadavalas. Jayachandra did not help him at Tarain |
| Feudal (samanta) armies | Troops were levies of feudatories with separate loyalties and no unified command or regular training. A king’s death often meant collapse |
| Military technique | Turks had fast cavalry and mounted archers, used feigned retreats, reserves and flank attacks. Indian armies relied on elephants and infantry, and on frontal combat |
| Horses | The best war-horses came from Central and West Asia, under Turkish control. Indian rulers had to import them |
| Defensive outlook | Indian kings rarely secured the north-west passes or struck back into Afghanistan after Mahmud’s raids |
| Social factors | Fighting was left largely to warrior castes, narrowing the military base. Alberuni noted Indian intellectual insularity |
| Turkish advantages | A centralised command; slave-soldiers (mamluks) loyal to the sultan; revenue assignments (iqta) to reward commanders; motivation from plunder and religious zeal |
A balanced conclusion
Do not reduce the outcome to “Indians were weak”. Rajput kingdoms won real victories (Kasahrada 1178, Tarain 1191). The decisive gap was organisational: unified command, cavalry, and the ability to absorb a defeat and return, as Ghori did between 1191 and 1192.
Consequences
- Foundation of the Delhi Sultanate (1206): the first long-lasting Turkish state in north India. See The Delhi Sultanate.
- New administration: iqta system, a centralised army, Persian as a court language.
- Destruction of Buddhist monasteries in Bihar and Bengal hastened the decline of Buddhism in India, which was already losing patronage.
- Cultural synthesis over time: Indo-Islamic architecture, Sufi orders, and the later growth of the Bhakti and Sufi movements (see Bhakti and Sufi Movements).
- Economic integration with West and Central Asia through trade and coinage.
Chhattisgarh angle
The Ghaznavid and Ghurid conquests stayed in the north and north-west. Chhattisgarh was not conquered by the Turks in this period. The Kalachuris of Ratanpur continued as a regional power, and the Delhi Sultanate never established lasting control over the region. Chhattisgarh’s own forest-and-hill geography and distance from the Ganga highway helped. This continuity is why the state’s medieval history runs through the Kalachuris to the Marathas, and why a Mains answer on medieval Chhattisgarh should stress regional autonomy. See Kalachuris of Ratanpur and Raipur and Maratha Rule in Chhattisgarh.
Memory Tricks
Dates as a ladder: '712 – 1026 – 78 – 91 – 92 – 94 – 1206'
- 712 Sindh (Qasim beats Dahir)
- 1026 Somnath (Mahmud; set out 1025)
- ‘78 Kasahrada: Gujarat says no to Ghori
- ‘91 Tarain I: Prithviraj says no
- ‘92 Tarain II: Ghori says yes
- ‘94 Chandawar: Jaichand goes
- 1206 Aibak begins the Sultanate
“Gujarat, Prithviraj, Ghori, Jaichand”: 78, 91, 92, 94.
Mahmud's scholars: 'AFU'
Alberuni (Kitab-ul-Hind) · Firdausi (Shahnama) · Utbi (Tarikh-i-Yamini).
Don’t Confuse
| This | vs | That |
|---|---|---|
| Mahmud of Ghazni — raids for plunder, annexed only Punjab | vs | Muhammad Ghori — aimed at permanent conquest, laid the base for the Sultanate |
| Tarain I (1191) — Prithviraj won | vs | Tarain II (1192) — Ghori won |
| Tarain (1192) — Prithviraj Chauhan | vs | Chandawar (1194) — Jayachandra Gahadavala |
| Kasahrada (1178) — Ghori defeated in Gujarat | vs | Somnath (1025–26) — Mahmud’s raid in Gujarat |
| Muhammad bin Qasim — Arab, Sindh, 712 | vs | Muhammad Ghori — Turk (Ghurid), 12th century |
| Bakhtiyar Khalji — Ghurid commander, Bihar and Bengal c. 1200–1204 | vs | Alauddin Khalji — Delhi Sultan, 1296–1316 |
Common Mistakes
MCQ traps
- “Mahmud founded a Muslim empire in north India.” He raided; only Punjab and Multan were annexed.
- “Ghori was never defeated in India.” He lost at Kasahrada (1178) and Tarain I (1191).
- “Alberuni came with Muhammad Ghori.” He was at the court of Mahmud of Ghazni.
- “Muhammad bin Qasim was a Turk.” He was an Arab general of the Umayyad caliphate.
- “Bakhtiyar Khalji was a Delhi Sultan.” He was a commander under the Ghurids.
Practice
All questions below are original practice questions written in CGPSC style. They are not previous-year questions.
Level 1: Foundation
- The ruler of Sindh defeated and killed by Muhammad bin Qasim in 712 was ______.
- Alberuni’s book on India is known as ______.
- The Gahadavala king killed at the Battle of Chandawar (1194) was ______.
Answers
- Raja Dahir.
- Kitab-ul-Hind (Tahqiq ma li-l-Hind).
- Jayachandra (Jaichand).
Level 2: Prelims MCQs
Q1. Arrange the following in chronological order:
- Battle of Kasahrada
- Second Battle of Tarain
- Sack of Somnath by Mahmud of Ghazni
- Battle of Chandawar
- (a) 3, 1, 2, 4
- (b) 1, 3, 2, 4
- (c) 3, 2, 1, 4
- (d) 3, 1, 4, 2
Answer and explanation
(a) 3, 1, 2, 4. Somnath (1025–26) → Kasahrada (1178) → Tarain II (1192) → Chandawar (1194).
Q2. Consider the following statements:
- Muhammad Ghori was defeated by the Chaulukya ruler Mularaja II before he fought at Tarain.
- Prithviraj Chauhan won the First Battle of Tarain.
- Mahmud of Ghazni annexed the Ganga valley up to Kannauj.
Which of the statements given above is/are correct?
- (a) 1 only
- (b) 2 and 3 only
- (c) 1 and 2 only
- (d) 1, 2 and 3
Answer and explanation
(c) 1 and 2 only. Kasahrada (1178) came before Tarain (1191, 1192), and Prithviraj won Tarain I. Statement 3 is wrong: Mahmud raided Kannauj in 1018 but annexed only Punjab and Multan.
Q3. Match List I (Author) with List II (Work):
| List I | List II |
|---|---|
| A. Alberuni | 1. Shahnama |
| B. Firdausi | 2. Tarikh-i-Yamini |
| C. Utbi | 3. Kitab-ul-Hind |
| D. Chand Bardai | 4. Prithviraj Raso |
- (a) A-3, B-2, C-1, D-4
- (b) A-3, B-1, C-2, D-4
- (c) A-1, B-3, C-2, D-4
- (d) A-2, B-1, C-3, D-4
Answer and explanation
(b) A-3, B-1, C-2, D-4. Alberuni wrote Kitab-ul-Hind, Firdausi the Shahnama, Utbi the Tarikh-i-Yamini, and Chand Bardai is credited with the Prithviraj Raso.
Q4. Muhammad bin Qasim, who conquered Sindh in 712, was sent by:
- (a) Mahmud of Ghazni
- (b) Hajjaj bin Yusuf, governor of Iraq
- (c) Sabuktigin
- (d) The Abbasid caliph Harun al-Rashid
Answer and explanation
(b). Hajjaj bin Yusuf, the Umayyad governor of Iraq, sent Muhammad bin Qasim. The Ghaznavids (Sabuktigin, Mahmud) came nearly three centuries later, and Harun al-Rashid was a later Abbasid caliph.
Level 3: Mains Answer Writing
Q1. (60 words) How did the aims of Mahmud of Ghazni differ from those of Muhammad Ghori?
Model answer outline
- Mahmud: raids for wealth (17 raids, 1000–1027; Somnath 1026) to fund Central Asian wars; annexed only Punjab and Multan.
- Ghori: permanent conquest; after Kasahrada switched to the Punjab route; Tarain 1192, Chandawar 1194; left Aibak in charge.
- Result: Ghori’s campaigns, not Mahmud’s, founded the Delhi Sultanate (1206).
Q2. (150–200 words) Analyse the causes of the defeat of the Rajput kingdoms at the hands of the Turks.
Model answer outline
- Intro: Between 1192 and 1206, the Ghurids overran north India, though Rajput states had held back the Arabs earlier and beaten Ghori in 1178 and 1191.
- Political: fragmentation, inter-Rajput rivalries (Prithviraj vs Chandelas and Gahadavalas), no common front.
- Military: feudal levies without unified command; elephants and infantry vs Turkish mounted archers; tactics of reserves, flank attacks and feigned retreat; dependence on imported horses; failure to guard the north-west passes.
- Social: narrow military base confined to warrior castes; insularity (Alberuni’s remark).
- Turkish strengths: centralised command, slave-soldiers, iqta system, plunder and religious zeal as motivation.
- Chhattisgarh angle: regions away from the Ganga highway, like Chhattisgarh under the Kalachuris of Ratanpur, remained outside Turkish control, showing that geography as well as organisation shaped the outcome.
- Conclusion: the defeat was organisational and strategic rather than a lack of bravery; it opened the Sultanate era and a long phase of cultural synthesis.
Quick Revision Table
| Fact | Detail |
|---|---|
| Arab conquest of Sindh | 712; Muhammad bin Qasim; Raja Dahir killed |
| Sent by | Hajjaj bin Yusuf (Umayyad governor of Iraq) |
| Source | Chachnama |
| Arabs checked by | Pratihara Nagabhata I; Chalukya Avanijanashraya Pulakeshin |
| Ghazni founded | Alptigin (960s); Sabuktigin defeated Jayapala |
| Mahmud | 998–1030; 17 raids (1000–1027); annexed Punjab |
| Somnath | Sacked January 1026; Bhima I (Chaulukya) |
| Kannauj raid | 1018; Pratihara Rajyapala fled |
| Mahmud’s scholars | Alberuni, Firdausi, Utbi |
| Kasahrada | 1178; Mularaja II and Naikidevi defeated Ghori |
| Lahore | 1186; Ghori ends Ghaznavid rule in Punjab |
| Tarain I / II | 1191 Prithviraj won / 1192 Ghori won |
| Chandawar | 1194; Jayachandra killed |
| Bakhtiyar Khalji | Bihar monasteries c. 1200; Nadia c. 1204 (Lakshmana Sena fled) |
| 1206 | Ghori assassinated; Aibak begins the Delhi Sultanate |
| Chhattisgarh | Not conquered by the Turks; Kalachuris of Ratanpur continued |
Key Takeaways
Key Takeaways
- Three waves: Arabs (Sindh, 712), Ghaznavids (raids, 1000–1027), Ghurids (conquest, 1175–1206).
- Mahmud raided; Ghori conquered. Only Ghori’s campaigns founded a lasting state.
- Learn the ladder 1178 – 1191 – 1192 – 1194 – 1206 in order, with the winner of each battle.
- The causes of defeat were organisational and military, not lack of courage; write them in categories.
- Chhattisgarh stayed outside Turkish rule; its Kalachuri kingdom continued into the 18th century.
What’s Next
- Early Medieval India — Quick Revision — the whole chapter on one page
- The Delhi Sultanate — what Aibak and his successors built
- Bhakti and Sufi Movements — the cultural synthesis that followed
- Kalachuris of Ratanpur and Raipur — medieval Chhattisgarh’s own continuity
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