However,the Ottoman army could not start the siege quickly.Because the supply ships, which could only move with difficulty in the Tigris, whose waters had receded due to the dry season, were able to bring the necessary cannons,ammunition,ammunition and grain from Mosul in three weeks.The siege was started on October 5,1630,when Serasker Süleyman Pasha, who came from Istanbul with reinforcements,joined the army and the soldiers entered the excavated metris.
After the Sultan Süleyman tower of the Baghdad Castle was severely damaged by the intense artillery fire of the Ottoman army, the attack was finally launched on October 10.
In this general attack, which resulted in heavy losses, commanders such as Zor Pasha, Genç Osman and Küçük Abaza also died.
In the meantime, a Safavid unit under the command of Khan Ahmed captured the Mihriban and Pelengan castles,forcing Arnavutoğlu Mustafa Pasha to retreat to Shahrizor.
Due to the failure of the attack on October 10, the decrease in grain and ammunition, and the danger to the north of the army from Shahrizor,Gazi Hüsrev Pasha lifted the siege on 14 November 1630.