Explanation:

The first Sultan of the Mamluk dynasty was Qutb ud-Din Aibak who had the titular name of Sultan and reigned from 1206 to 1210. He temporarily quelled the rebellions of Nasir-ud-Din Qabacha of Multan and Tajuddin Yildoz of Ghazni. Making Lahore his capital, he consolidated his control over North India through an administrative hold over Delhi. He also initiated the construction of Delhi's earliest Muslim monuments, the Quwwat-ul-Islam mosque and the Qutb Minar. In 1210, he died due to injuries received from an accident while playing a game of polo in Lahore; his horse fell and he was impaled on the pommel of his saddle. He was buried near the Anarkali Bazaar in Lahore. The second Sultan was Aram Shah who had the titular name of Sultan and reigned from 1210 to 1211. An elite group of forty nobles named Chihalgani ("the Forty") conspired against Aram Shah and invited Shams-ud-din Iltutmish, then Governor of Badaun, to replace Aram. Iltutmish defeated Aram in the plain of Jud near Delhi in 1211. It is not quite certain what became of Aram. The third Sultan was Shams-ud-din Iltutmish who had the titular name of Nasir Amir-ul-Mu'minin  and reigned from 1211 to 1236. He shifted the capital from Lahore to Delhi and trebled the exchequer. He defeated Nasir-ud-Din Qabacha of Multan and Tajuddin Yildoz of Ghazni, who had declared themselves contenders of Delhi. Mongols invaded India in pursuit of Jalal-ud-din Mangabarni who was defeated at the Battle of Indus by Genghis Khan in 1221. After Genghis Khan's death, Iltutmish consolidated his hold on northern India by retaking many of the lost territories. In 1230, he built the Hauz-i-Shamsi reservoir in Mehrauli, and in 1231 he built Sultan Ghari, which was the first Islamic mausoleum in Delhi. The fourth Sultan was Rukn-ud-din Feroze  who had the titular name of Sultan and reigned from April 1236 to November 1236. He ruled for only seven months and his mother, Shah Turkan, for all practical purposes was running the government. He abandoned himself to the pursuit of personal pleasure and debauchery, to the considerable outrage of the citizenry. On 9 November 1236, both Rukn-ud-din Feroze and his mother Shah Turkan were assassinated by the Chihalgani. The fifth Sultana was Razia al-Din who had the titular name of Jalâlat-ud-dîn Raziyâ Sultana  and reigned from 1236 to 1240. As the first female Muslim ruler in India, she initially managed to impress the nobles and administratively handled the Sultanate well. However, she began associating with the African Jamal-ud-Din Yaqut, provoking racial antagonism amongst the nobles and clergy, who were primarily Central Asian Turkic and already resented the rule of a female monarch. She was defeated by the powerful nobleman Malik Altunia whom she agreed to marry. Her half-brother Muiz-ud-din Bahram, however, usurped the throne with the help of the Chihalgani and defeated the combined forces of the Sultana and her husband. The couple fled and reached Kaithal, where their remaining forces abandoned them. They both fell into the hands of Jats and were robbed and killed on 14 October 1240.