How did Qutubuddin Aibak died
Qutub ud din Aibak died at Lahore, early in November, 1210 AD, as a consequence of fall from horse while playing Chaugan or Polo, after short reign of little more than 4 years.
Chaugan is a form of polo on horseback. He died instantly when the pommel of the saddle pierced his ribs.
He transformed the loosely-held Ghurid territories of India into the powerful Delhi Sultanate. Qutubuddin Aibak is known for having commissioned the Qutb Minar in Delhi, and the Adhai Din Ka Jhonpra in Ajmer.
Succession after his death
Qutubuddin Aibak was succeeded by Aram Shah, and then by his former slave Iltutmish(Altmash).
The local nobles appointed Aram Shah as his successor to prevent instability in the kingdom.
However, the nobles in other parts of the Sultanate opposed this decision, and proposed Altmash as an alternative, because Aibak used to call him a son, and because he had a distinguished record of service. These nobles invited him to occupy the throne.
Altmash marched to Delhi, where he seized the power, and later defeated Aram Shah’s forces.
Some nobles rebelled against his seizure of power, but Altmash subjugated them, and had many of them beheaded.