However, Saifuddin Aibak - a Turkic slave officer appointed as the governor of Uch by Iltutmish, defeated him and forced him to retreat. Minhaj praises Ruknuddin for three qualities: handsomeness, gentle temperament, and generous nature. According to Minhaj, Ruknuddin greatly enjoyed riding elephants, and greatly favoured mahouts, who became important in his court. Minhaj narrates that Ruknuddin would scatter gold coins in bazaars, while riding intoxicated on an elephant. He used to spend a lot of money on musicians, clowns, and eunuchs. While spending his time and the state funds in pursuing pleasure, Ruknuddin left the control of administration to his mother Shah Turkan. Shah Turkan was originally reputed for charitable and religious donations, but her nature changed after she gained control of the administration. She mistreated ladies in Iltutmish's harem, and according to Minhaj, "destroyed" several of them. She and Ruknuddin ordered the blinding and killing of Qutubuddin, a young and popular son of Iltutmish, which triggered several rebellions:   Ruknuddin sent an army against the rebels, but his wazir (prime minister) "Nizamul Mulk" Junaidi deserted the army at Kailugarhi, and fled to Koil (modern Aligarh), later joining Salari. The forces of Junaidi and Salari subsequently joined the forces of Kuchi and Jani. The officers of Ruknuddin's father Iltutmish belonged to two major categories: the Turkic-origin slaves and the "Tazik"-origin non-slaves. The Tazik officers included the prime minister Junaidi. After the rebellions against Ruknuddin, the Turkic officers, who formed the core of Ruknuddin's army, planned murders of many Tazik officers in the Mansurpur-Tarain region. Several important Tazik officers were killed as a result:   Ruknuddin marched towards Kuhram to fight the rebels. Meanwhile, in Delhi, his half-sister Razia - whom his mother Shah Turkan had planned to execute - instigated the general public against Shah Turkan at a congregational prayer. A mob then attacked the royal palace and detained Shah Turkan. Several nobles and the army pleged allegiance to Razia, and placed her on the throne. Ruknuddin marched back to Delhi, but Razia sent a force to arrest him: he was imprisoned and probably executed on 19 November 1236, having ruled for 6 months and 28 days.