Dear Student,
The Khaljis ruled from 1290 to 1320.Alauddin Khalji was the most powerful Khalji ruler introduced military and market reforms.
Jalal ud din Firuz Khilji was the founder of the Khilji/Khalji dynasty. They later expanded their reign. Allauddin Khalji was also a very powerful ruler who murdered Jalal ud din treacherously. After Allauddin the successors were weak and didn't last long.
He is the son of Qaim Khan (Yulak Khan of Qunduz), and also the founder of the Khilji Dynasty.
Regards