| Conflict: | Siege of Debal |
| Place: | Debal, Sindh |
| Partof: | Umayyad campaigns in India and Umayyad conquest of Sindh, Muslim conquests in the Indian subcontinent |
| Combatant1: | Umayyad Caliphate |
| Territory: | Debal is conquered by the Umayyads and Muhammed Ibn Qasim leaves a garrison of 4,000 strong in the city. |
| Combatant2: | Kingdom of Sindh |
| Commander1: | Muhammad ibn al-Qasim |
| Commander2: | Unknown (nephew of Raja Dahir) |
| Units1: | 6,000 Syrian Cavalry 3,000 CamelryUnknown number of Arab soldiers |
| Units2: | 4,000 Rajputs 3,000 Brahmins |
| Result: | Umayyad Victory |
| Date: | 711 AD |
| Coordinates: | 24.86°N 67.01°W |
| Map Type: | Sindh#Pakistan#South Asia |
The siege of Debal, also known as the siege of Debul, took place in the autumn of 711 AD, in which the Umayyad forces under Muhammed Ibn al-Qasim besieged Debal, a city under the Brahmin dynasty of Sindh ruled by Raja Dahir. Umayyads defeated the inhabitants of the order on the order of Governor of Iraq Al-Hajjaj and captured it.
In 711, Muhammed ibn Qasim marched towards Debal with 6,000 Syrian cavalry and 3,000 camelry with a good number of Arab soldiers. The city was commanded by a nephew of King Dahir with an army of 4,000 Rajputs and 3,000 Brahmins.[1] [2] Umayyad forces encamped outside the city walls for seven days waiting for the permission letter to attack. On the eight day, Muhammed ibn Qasim received the letter from Al-Hajjaj and eventually the Umayyad Army scaled the walls of Debal and its people surrendered.[3] [4] [5] [6]