Arabs Conquer Sind

In 711 AD, an Arab army under the young commander Muhammad bin Qasim began the conquest of Sind, the lower Indus valley in what is now southern Pakistan. The campaign brought the rule of the Umayyad Caliphate to the edge of the Indian subcontinent and established a lasting Muslim political presence there. Although Islam had already reached India's coasts through traders, this was the first time a Muslim state governed territory in South Asia.

Arab interest in the region predated the invasion. Raids and expeditions toward Makran, Sind, and the western coast had been attempted since the decades after the Prophet Muhammad's death, with mixed results. Sind was then ruled by Dahir, whose dynasty had replaced the earlier Rai line, and it was a prosperous region with ports, trade routes, and a population that included Hindus and Buddhists. Medieval Arabic and Persian sources, notably the later chronicle known as the Chach Nama, say the immediate pretext was the seizure of ships carrying Muslim travelers or goods near Debal, and that the Umayyad governor of Iraq, al-Hajjaj ibn Yusuf, then authorized a large expedition. Historians note that these accounts were written long after the events and that strategic and economic motives likely mattered as well.

Muhammad bin Qasim, still in his teens or very early twenties according to most traditions, advanced through Makran and captured the port of Debal. He then moved up the Indus, taking fortified towns such as Nerun and Sehwan, and used siege equipment and local alliances to his advantage. The decisive confrontation came with Dahir's army in 712, near the town of Raor, where Dahir was killed. Resistance continued in places, and Multan fell later, but by about 713 much of Sind and part of the southern Punjab were under Arab control.

Muhammad bin Qasim's administration is often remembered for pragmatism. Many local officials were kept in place, taxes were organized along established lines, and non-Muslim communities were generally treated as protected subjects who paid a tax in return for security and religious freedom. Sources vary in how consistently this was applied, and the sources reflect later agendas. After the death of al-Hajjaj and the caliph al-Walid I, Muhammad bin Qasim was recalled and died, with the circumstances disputed.

Sind remained a frontier province, and Arab power there later fragmented into smaller local emirates, with Multan and Mansura as important centers. The conquest did not immediately spread Islam across India, since further Arab advances were checked by regional powers. Its longer significance lies in opening a channel for cultural, commercial, and intellectual exchange, including the transmission of Indian mathematics and astronomy to the Islamic world. The episode remains important, and contested, in modern South Asian historical memory.