When Alauddin learned about Ulugh Khan's defeat, he decided to personally lead a stronger force to Ranthambore. He ordered his other officers from various provinces to bring their armies to
Tilpat near Delhi. While these armies were on their way to Tilpat, he spent his time
hunting. During one such hunting expedition, his nephew Sulaiman Shah
Akat Khan conspired to kill him. However, the conspiracy was not successful, and Akat Khan and his companions were executed. When Alauddin reached Ranthambore, the fort was already surrounded by the Delhi army. He realized that a direct attack on the fort was not feasible: the advantage lay with the defenders. Alauddin's camp was located on a
hillock called Ran, which faced the Ranthambore Fort's hill. Alauddin ordered the construction of a
pasheb, an inclined mound built to fill the ditch separating his camp and the fort. Weavers from the neighbouring areas were brought, and asked to sew a large number of bags. Alauddin's soldiers then filled these bags with soil, and used them to build the
pasheb mound. The construction of the
pasheb was a long and difficult process for the invading army. But none of Alauddin's soldiers deserted him, because he demanded three years' pay from any deserter. The Delhi army used the
siege engines called
maghrabis to shoot stones at the defending garrison. But the defenders kept destroying the under-construction
pasheb with fire and stones. Alauddin's army also tried to construct a tunnel, but the defenders destroyed it and killed those involved in its construction by throwing a mixture of oil and resin on them. There was heavy loss of lives on both the sides. During this time, Alauddin's army also plundered the neighbouring region, going as far as
Dhar in the
Paramara territory. While Alauddin was at Ranthambore, there were two attempts to usurp the power in Delhi. In the first attempt, his nephews
Malik Umar and Mangu Khan started recruiting soldiers to overthrow his rule. But Alauddin sent his officers to subdue him. The two brothers were brought to Ranthambore, and killed. Sometime later, an officer named
Haji Maula took control of Delhi and appointed one Alavi as the puppet Sultan. Alauddin first sent Malik Hamiduddin, who killed Haji Maula and Alavi. Some days later, he also sent Ulugh Khan, who had the other rebels executed. Despite these rebellions, Alauddin did not abandon his campaign to conquer Ranthambore. == Ratipala's defection to Alauddin ==