The Mamluk Dynasty (sometimes referred as Slave Dynasty or Ghulam Dynasty) was directed into Northern India by Qutb-ud-Din Aibak, a Turkic Mamluk slave general from Central Asia. The Mamluk Dynasty ruled from 1206 to 1290; it was the first of five unrelated dynasties to rule as the Delhi Sultanate till 1526. Aibak's tenure as a Gaurid dynasty administrator lasted from 1192 to 1206, a period during which he led invasions into the Gangetic heartland of India and established control over some of the new areas.
History of Gulam Dynasty:-
The Mamluk, literally meaning owned, was a soldier of slave origin who had converted to Islam. The phenomenon started in the 9th century and gradually the Mamluks became a powerful military caste in various Muslim societies. Mamluks held political and military power most notably in Egypt, but also in the Levant, Iraq and India.
In 1206, Muhammad of Ghor, Sultan of the Ghurid Empire was assassinated. Since he had no children, his empire split into minor sultanates led by his former mamluk generals. Taj-ud-Din Yildoz became the ruler of Ghazni. Muhammad bin Bakhtiyar Khilji got Bengal. Nasir-ud-Din Qabacha became the sultan of Multan. Qutb ud-Din Aibak became the sultan of Delhi, and that was the beginning of the Slave dynasty.
Aibak rose to power when a Ghorid superior was assassinated. However, his reign as the Sultan of Delhi was short lived as he died in 1210 and his son Aram Shah rose to the throne, only to be assassinated by Iltutmishin 1211.
The Sultanate under Iltutmish established cordial diplomatic contact with the Abbasid Caliphate between 1228–29 and had managed to keep India unaffected by the invasions of Genghis Khan and his successors. Following the death of Iltutmish in 1236 a series of weak rulers remained in power and a number of the noblemen gained autonomy over the provinces of the Sultanate. Power shifted hands from Rukn ud din Firuz to Razia Sultana until Ghiyas ud din Balban rose to the throne and successfully repelled both external threats to the Sultanate from the Chagatai Khanate invasions and internal threats from the rebellious sultanate nobles. The Khalji dyansty came into being when Jalal ud din Firuz Khalji overthrew the last of the Slave dynasty rulers, Muiz ud din Qaiqabad, the grandson of Balban, and assumed the throne at Delhi.