Arab Conquest of Sindh by Muhammad bin Qasim (712 AD)
Medieval History › Early Medieval Period · Topic 1.19
In 711 to 712 the Umayyad commander Muhammad bin Qasim, sent by the Iraq governor al-Hajjaj, took Debal and defeated Raja Dahir at Aror, and made Sindh and Multan part of the caliphate. The conquest stayed confined to the lower Indus, but it made Sindh a bridge for science and ideas between India and the Arab world.
5 min read · UPSC Prelims · History · Early Medieval Period
At a Glance
- Commander Muhammad bin Qasim, young Umayyad general
- Patron Al-Hajjaj, governor of Iraq
- Opponent Raja Dahir of Sindh
- Key year 712
- Main source Chach Nama, a late Persian text
- Exam link UPSC Prelims, Medieval History: Early Medieval Period
Where Does It Fit?
This is the nineteenth topic of the category on the early medieval period. The previous topic covered the Indian economy, and this topic goes back chronologically to the first Muslim conquest of a part of India. The next topic covers the raids of Mahmud of Ghazni. Previous topic: Economy and Decline of Trade in Early Medieval India.
Why Did the Arabs Invade Sindh?
In short: the Arab conquest of Sindh was a military expedition by the Umayyad governor of Iraq, Al-Hajjaj, led by his young relative Muhammad bin Qasim in 711 to 712.
Muhammad bin Qasim came from the Banu Thaqif of Taif and was a relative of al-Hajjaj ibn Yusuf, the viceroy of Iraq. He was given command of the Sindh expedition when he was a teenager. The reasons given by al-Hajjaj’s letters and the Chach Nama are attacks on Arab shipping by pirates based at Debal and the capture of Muslim women. The Umayyads had earlier avoided expansion into this region. Sindh was then ruled by a king, Dahir, who was himself a Brahman.
How Did the Campaign Unfold?
| Stage | Event |
|---|---|
| Debal | The Arab forces took the port town and destroyed its great temple |
| Nerun and Sehwan | The army moved up the Indus through these towns |
| Aror (Rohri), 712 | Raja Dahir was defeated and killed |
| Brahmanabad, Aror and Multan | Taken afterwards, bringing Sindh and Multan under the caliphate |
Qasim governed Sindh from 712 until 715. He was recalled under the new caliph Sulayman and died at Mosul in July 715. Accounts of his death differ: al-Baladhuri describes torture by a rival governor, while the Chach Nama gives a legend involving Dahir’s daughters.
What Is the Timeline of the Arab Conquest?
| Date | Event |
|---|---|
| About 708 to 711 | Qasim is given command of the Sindh expedition |
| 711 to 712 | Debal and the towns up the Indus are taken |
| 712 | Dahir is defeated at Aror |
| 712 to 715 | Qasim governs Sindh |
| 715 | Qasim is recalled and dies at Mosul |
| 738 | The Arabs are defeated in Gujarat by the Chalukya ruler |
The dates before 711 are approximate, as the sources give them loosely.
How Did the Arabs Rule Sindh?
Qasim let non-Muslims keep their religious practices in return for jizya and kept local elites in the administration. Historians disagree on whether conversion was forced or voluntary and on whether his rule was tolerant or harsh. The record rests on the Chach Nama, a Persian text of the thirteenth century that scholars call a late and doubtful source, so its detailed stories, including those of Qasim’s death, are treated as legendary.
Why Did the Arabs Not Spread Further?
Nagabhatta I of the Pratiharas offered stout resistance to the Arab rulers of Sindh who were trying to push into Rajasthan, Gujarat and Punjab. The Arabs made a big thrust towards Gujarat but were decisively defeated by the Chalukya ruler of Gujarat in 738. Small raids continued, but the Arabs ceased to be a threat after that. Arab rule in Sindh later shrank to principalities such as Mansura and Multan, and Arab expansion into India was checked by Hindu kingdoms for about three centuries.
What Was the Cultural Effect of the Conquest?
After its conquest by the Arabs in the eighth century, Sindh became a channel of scientific and cultural links between India and the Arab world. The decimal system, which developed in India in the fifth century, reached the Arab world and was popularised in the ninth century by the mathematician al-Khwarizmi. Indian works on astronomy and mathematics, such as the Surya Siddhanta, and the medical works of Charaka and Sushruta were translated into Arabic. Sanskrit literary works such as the Panchatantra, as Kalila wa Dimna, were also translated. Indian physicians and craftsmen were received at the caliph’s court at Baghdad, and the caliph al-Mamun set up the House of Wisdom for translation.
Why Is This Topic Important?
- First Muslim rule The first Muslim state on Indian soil
- Limited conquest Shows why the Turks, not the Arabs, later conquered the north
- Transmission Sindh passed Indian science to the Arab world
What Came Next?
The next topic covers the raids of Mahmud of Ghazni, which began about three centuries after the Arab conquest. Next topic: Mahmud of Ghazni’s Invasions of India.
Key People and Terms
- Muhammad bin Qasim Umayyad commander of Sindh
- Al-Hajjaj Umayyad governor of Iraq
- Raja Dahir Ruler of Sindh defeated in 712
- Debal Port town taken first
- Chach Nama Late Persian account of the conquest
- Jizya Tax on non-Muslims
Exam Corner
Points to Remember
- The year is 712; the ruler defeated was Dahir.
- Al-Hajjaj sent the expedition.
- Chach Nama is a thirteenth-century source.
- Arabs were defeated by the Chalukya ruler of Gujarat in 738.
- Multan was also taken.
Do Not Confuse With
- Arab conquest and Turkish conquest Eighth-century Sindh versus twelfth-century north India
- Umayyad and Abbasid Dynasty of the conquest versus the later House of Wisdom caliphs
- Qasim and Mahmud of Ghazni Occupying general versus a raider
Memory Hook
Hajjaj sends, Qasim takes Debal, Dahir falls, Gujarat stops them.
Mains Angle
Questions on Sindh ask about causes, limits and effects. These points add depth.
- Causes Piracy, expansion and commander’s ambition
- Limits Indian resistance and distance
- Effects Cultural and scientific transmission
A Question You May Face
An original practice question, not a past paper question.
“Why did the Arab conquest of Sindh remain confined to a small area, and what were its cultural effects?”
How to Answer
- Conquest Debal, Aror and Multan.
- Rule Jizya and local elites.
- Limit Nagabhatta I and the 738 defeat.
- Effects Science and ideas to Baghdad.
GS Relevance
Frequently Asked Questions
Who led the Arab conquest of Sindh?
Muhammad bin Qasim, a young Umayyad general of the Banu Thaqif, led the conquest in 711 to 712 on the orders of his relative al-Hajjaj, governor of Iraq. He took Debal, defeated Raja Dahir at Aror and then occupied Brahmanabad and Multan.
What was the Chach Nama?
The Chach Nama is a Persian account of the Arab conquest of Sindh, written in the thirteenth century. It is the main source for Muhammad bin Qasim's campaign, but historians call it a late and doubtful source, especially for its legends about Qasim's death.
How did Muhammad bin Qasim treat the people of Sindh?
Qasim allowed non-Muslims to keep their religious practices in return for jizya and kept local elites in the administration. Historians disagree whether conversion was forced or voluntary and whether his rule was tolerant or harsh.
Why did Arab power not spread beyond Sindh?
Indian rulers resisted: Nagabhatta I of the Pratiharas blocked Arab moves into Rajasthan, and the Chalukya ruler of Gujarat decisively defeated the Arabs in 738. Arab rule shrank to Mansura and Multan, so the conquest stayed local.
How did Sindh help transfer Indian knowledge to the Arabs?
After the conquest Sindh became a link between India and the Arab world. The decimal system, Indian astronomy and mathematics such as the Surya Siddhanta, medical works by Charaka and Sushruta and the Panchatantra were translated into Arabic.
PYQ Practice — Statement Analysis
1 Muhammad bin Qasim defeated Raja Dahir in 712.
The battle is placed at Aror (Rohri).
2 The Chach Nama was written by a contemporary of Muhammad bin Qasim.
It is a thirteenth-century Persian text.
3 The Arabs were defeated by the Chalukya ruler of Gujarat in 738.
They ceased to be a major threat.
4 Al-Hajjaj was the governor of Khurasan.
He was the viceroy of Iraq.
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